Mosport: Canada's First Grand Prix Home

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Automobilista 2's v1.6 update saw the arrival of three new North American tracks - and while most will know Sebring and Road Atlanta, not too many might be aware of Mosport.

A bumpy airfield circuit, a winding blast through the hills of Georgia (USA, not Eastern Europe), and a Canadian classic - the trio of new circuits added to Automobilista 2 via the v1.6 update as part of the IMSA Track Pack are certainly exciting. And while most sim racers will know Sebring and Road Atlanta, Mosport might fly under the radar for some - and it really should not, in my opinion.

Located northeast of Toronto, Ontario, in what is close to "the middle of nowhere" territory, Mosport is one of those few circuits that have not seen a single layout change throughout its decades-long existence. The track opened in 1961, and it still uses the exact same, blisteringly quick trajectory. Add in some serious elevation change, particularly in the first half of the lap, and you are in for a treat.

Of course, run-offs and facilities have changed over the years, the track has been widened and the crest towards the end of Mario Andretti Straightaway was lowered (thanks to @Emery for bringing that up!), but the fact that the layout itself remains the same is remarkable. Road America would be another example for this, save for the addition of the motorcycle chicane at The Kink - but that did not alter the original layout.

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Image: racingcircuits.info

F1 Debut In 1967, Tragedy In WSC​

Anyway, back to Canada. Mosport, or Canadian Tire Motorsport Park, first saw Formula One action in 1967, making it F1's first Grand Prix home. The track would alternate with Mont Tremblant for the next few years, but from 1971 onwards, Mosport was the host of the Canadian Grand Prix. The only exception was 1975, where the event was not held at all, supposedly over "a financial disagreement between the track and the Formula One Constructor's Association", as Canadian sports outlet TSN put it.

F1's final trip to Mosport happened in 1977, after which the Canadian Grand Prix moved on to Montréal. That did not mean high-level racing would skip the track, though: Sportscar racing continued, and does to this day. Even the World Sportscar Championship ran here, with the 1985 1000 km of Mosport being the final time.

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Group C beasts at a relatively small, high-speed circuit like Mosport are exciting, but dangerous.

The race, sadly, was a tragic one. With Group C cars flying around a circuit that was no stranger to serious accidents - look no further than John Surtees, who was lucky to survive life-threatening injuries sustained at a 1965 crash in a Lola T70 - disaster struck early on. Driving a Porsche 962C for Kremer Racing, German Manfred Winkelhock suffered a tire failure when racing through Clayton Corner, crashing into the concrete barrier.

Winkelhock, who was also an F1 driver for RAM-March at the time, sustained head injuries that proved unsurvivable, as he succumbed to them the following day. It took marshals 25 minutes to extricate him from the wrecked 962. A mere three weeks later, Stefan Bellof died in the older-spec 956 at Spa-Francorchamps - a heavy blow to German motorsports, and one that apparently even led to a young Michael Schumacher questioning whether or not what he loved doing was something to continue.

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The Moss turns, named so after Sir Stirling Moss, who suggested that instead of the carousel-style hairpin, this two-corner approach would be a bigger challenge instead.

Stock Cars & Sportscars​

In the following years, Mosport hosted stock car and GT racing as well, and it was also a mainstay on the Atlantic Championship series, a junior series on the North American open-wheel ladder that ultimately led to IndyCar, and later, CART or ChampCar.

However, sportscars remained even more present. The American Le Mans Series ran at Mosport from 1999 to 2013, and IMSA has had multiple stints, currently racing LMP2 and GTD machinery in Ontario. Today, the NASCAR Canada Series, the Trans-Am Series, the Sports Car Championship Canada and the Canadian Superbike Championship round out the calendar of the circuit.

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LMP2 and GTD (so GT3) machinery diving into Turn 1.

A Fun High-speed Adventure In AMS2​

And while the current crop of Hypercars - or GTP, if you are so inclined - does not actually race at Mosport, that does not mean that we cannot do just that in sim racing. Automobilista 2's hybrid-powered prototypes are excellent fun around the sweeping circuit, and the braking zone into the first of the two Moss turns is quite tricky - but very rewarding if you get it right.

At the same time, AMS2's Mosport might not look the part (although maybe a retro version might come - you never know with Reiza), it also fits well on the calendars of three F1 seasons represented in the sim, those being 1967, 1969 and 1974. And somehow, I have a feeling that any of the 1990s IndyCars, called F-USA in the sim, might be a very good fit for the circuit as well.

Of course, you do not have to stick to AMS2 for your dose of Mosport. There are multiple mod versions available for Assetto Corsa in our download section, for instance, and there is an rFactor 2 version as well - although that is nine years old at this point, so your mileage may vary. Older sims like the original rFactor or the first Automobilista also have one or more modded Mosports available - and if you really want to go old school, look no further than Grand Prix Legends, which has the track by default.

What do you think of Mosport? Have you tried it before, and is it even maybe a favorite of yours? Let us know in the comments below!
About author
Yannik Haustein
Lifelong motorsport enthusiast and sim racing aficionado, walking racing history encyclopedia.

Sim racing editor, streamer and one half of the SimRacing Buddies podcast (warning, German!).

Heel & Toe Gang 4 life :D

Comments

Really, Mosport and you don't mention GPL 🫨


and kick the old dawg while she's down lol
- although that is nine years old at this point, so your mileage may vary.
 
...but could also not have aged well....
Depends on what one wants from a sim - if that's next gen graphics and ton of other things that help for "immersion", yes it haven't aged well, but if that's full classic 60's seasons with accurate historical grids for every race and historically accurate tracks (with period correct look - layout, sidetrack objects and ads, etc.), then it have aged pretty well.
 
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Depends on what one wants from a sim - if that's next gen graphics and ton of other things that help for "immersion", yes it haven't aged well, but if that's full classic 60's seasons with accurate historical grids for every race and historically accurate tracks (with period correct look - layout, sidetrack objects and ads, etc.), then it have aged pretty well.
Indeed, it depends on so many factor, relating to what we feel like to do at our rig, which might even vary depending of the day of the week. :)
In the case of this example, we can have our cake, the next gen graphic, and eat it to, full classic 60's seasons with accurate historical grids for every race and historically accurate tracks (with period correct look - layout, sidetrack objects and ads, etc.), using Assetto Corsa.
Not out of the box, but worth the efforts, if collecting and putting together the content, is an effort, as for some, it is part of the fun.
Racing video games are an endless source of entertainment.
 
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AMS2 has a lot of tracks, are these things all laserscanned? How do these guys do it, 3 tracks for free while others are charging arm and leg now?
 
Premium
If only tracks could be created and licenses and then individual sims could choose to make them available.

We seem to have so many great tracks and cars and a really ****ed up way of ruining access to them in the sensible way.

All these incredible Formula 1 cars are such an absolute spine tingling joy to dance with, especially in VR, yet no amount of money can get all the tracks in the right places, and the minor bugs worked out... 🤷‍♀️

because of inexcusable excuses.

So glad they are at least somewhere! and at least at some level of quality. Always better than nothing.

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Definitely my new favorite track to drive. Getting the hairpin just right is a challenge.
Moss corners are not a hairpin. They are two corners. They were picked by Niki Lauda as the top ten hardest corners in racing.
However, the downhill turn 2 is regarded as a more difficult corner, and had several fatal crashes over the years. Mosport is one of the few tracks in the world than has not changed layout since it opened in 1961.
The AMS2 version is close to accurate, but the track was repaved in 2020 while the game has the earlier surface. JohnR's Asssetto Corsa version is the most accurate. The real track has higher elevation changes.
Three major issues with the AMS2 version 1.6 are the awkward pit lane release, pole position is on the wrong side and the way AMS2 does AI means they blow past on the Andretti straight.
 
Lauda was just being to modest as always
those two corners are among two hardest :D
 
There have been a few comparatively small changes in the layout from what I can tell, but aside from seemingly changing Moss from a more conventional hairpin to, more or less, the corner we know, from 1961 to '62, I can basically overlook it. The other alteration(s) occurred during the 1999-01 refurbishment.

It's kind of like Mid Ohio, where the Oak Tree complex of 1962 gave way to Thunder Valley for '63.

And I'm not sure why you say Mosport flies under the radar or is that much less known. I know NASCAR dominates things here in the US, but for those into road racing, and certainly Sportscars, Mosport isn't, or at least shouldn't be, that obscure.
 
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@Yannik Haustein I believe turn 5A may have slightly altered as well; I've read reports that Moss Corner was "squared off" a bit. I'm unsure if that is purely visual due to how the track was widened (I'll get to that) or if it actually changed the racing line to be more squared off as well.

On the widening, it's worth noting that it was widened in such a way that the racing line didn't change. Most of the time a circuit gets widened they just add a bit to the side of the track. The result is a different racing line and, usually, a faster lap. When Mosport was widened it was done in a way where a single car's driving line was the same before and after. I'd imagine widening in that way would make several corners look more squared off as the extra width was added to the inside on the 'straight' bits, and the outside of the corners, giving an overall more squared look while the actual racing line retains the exact same trajectory.

Other points of note; modern GTP did race at Mosport in 2023, the inaugural season of the new rules. Sadly the class no longer races there, instead leaving P2 as the top class when IMSA visits. Big blow to the Canadian fans, for sure. Hopefully that gets reversed soon.

Turn 1 is a fast, blind, descending, desceptive corner that only requires a lift or a quick dab of the brakes. Turn 2 (aka Clayton Corner) is a monster, with a blind turn in before a crest, dropping several stories with questionable camber, also only requires a lift or quick brake dab and lots of guts. Turn 4 is a fast, blind, descending corner that... See a pattern, here? Turn 5 brakes up the fast, blind, descending corners with the singular slow complex on the entire circuit, though it is also more or less blind and, this time, very steeply ascending. Even in VR, you simply do not get any appreciation for just how steep these areas are. The steep entry to 5A is like a wall.

It's such a wild lap. So much incredible elevation change. Incredible flow, while still being quite technical. Fast. Very fast. The kind of place that requires commitment. Certainly don't build them like they used to.
At the very least, Turn 4 and the 1st part of Moss were realigned during the refurbishment that took place in 1999-01. I'm actually kind of wondering if they basically shifted Moss over, and then made the exit curves into a single unit.

You don't really notice the "squaring off" anywhere else around the lap. My suspicion is that it's at least as much just a case of the various camera angles over the years giving that impression.

However, if they moved the whole corner over, in essence, then if the camera stays in the same place, that certainly would make the 2nd part look more acute.
 
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Moss corners are not a hairpin. They are two corners. They were picked by Niki Lauda as the top ten hardest corners in racing.
However, the downhill turn 2 is regarded as a more difficult corner, and had several fatal crashes over the years. Mosport is one of the few tracks in the world than has not changed layout since it opened in 1961.
The AMS2 version is close to accurate, but the track was repaved in 2020 while the game has the earlier surface. JohnR's Asssetto Corsa version is the most accurate. The real track has higher elevation changes.
Three major issues with the AMS2 version 1.6 are the awkward pit lane release, pole position is on the wrong side and the way AMS2 does AI means they blow past on the Andretti straight.
There have been a few, comparatively minor alterations made to the layout at Mosport. However, these are pretty subtle for the most part, so I'm incllned to let them slide.

I get the sense that it was a hairpin in 1961, but was then changed for '62. That would really be the only change I'd particularly note.

Now, for the refurbishment in 1999-01, Turn 4 on through at least the 1st part of Moss was realigned, and they may have simply slid the whole of Moss corner over and even slightly adjusted 5C along with that.

But even then, you'd have to know about this and look very carefully to have any clue. So at the very least, by any practical sense, I'd consider Mosport unchanged since 1962. Similarly, Mid Ohio didn't have Thunder Valley in 1962, but rather, a different complex. This was changed for '63 though, and most people wouldn't even be aware of this alteration.

So in both cases, they haven't been changed in quite a long time. Now, i suppose the top of the list for unchanged North American road courses would be Willow Springs (1953), Road America (1955), VIRginia Int'l Raceway (1957), and Lime Rock (1957), as the original layout is still there, and some series use it.
 
It's a real shame to see what has happened to our Canadian racing scene, don't you think? We used to have tremendous talents in the 90's: David Empringham, Paul Tracy, Jacques Villeneuve, Patrick Carpentier, Alex Tagliani, Claude Bourbonnais... In the mid-80's, Bertrand Fabi was a hugely talented driver who was destined for great things, maybe even F1. He died tragically in 1986 while testing a F3 car in the UK. And I will always mourn Greg Moore, who would have been an Indycar champion (multiple times) had he not died at Fontana in 1999.

It's sad that the last two Canadians in F1 are Lance Stroll and Nicholas Latifi, two guys who only got there because of their dad's money. I don't know if there's anybody coming up in the junior series.
I don't think Stroll is a bad driver, but I can't rule out there being someone better coming up on the Canadian ladder.

Also, these days, you have to have serious funding and connections to get into the upper rungs of motorsport anymore.
 
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I don't think Stroll is a bad driver, but I can't rule out there being someone better coming up on the Canadian ladder.

Also, these days, you have to have serious funding and connections to get into the upper rungs of motorsport anymore.
True. One things that really helped in the 90's was the Players' program that funded a lot of young drivers. Players' was a major sponsor in Formula Atlantic and CART. Most young Canadian drivers relied on that. When tobacco advertising was forbidden, the program folded and suddenly, there were no more young Canadian drivers.

Nowadays, a lot of young Canadian drivers choose stock cars instead of open-wheel racing. There's a very talented driver from my province of Québec called Raphaël Lessard who got as high the NASCAR truck series and won a race at Talladega. However, he could not find enough sponsorship money to go to the Xfinity series. Right now, he races part time in the Canadian NASCAR championship, but he clearly could race at a higher level with good sponsors.
 
Walked the entire track that damp, cool morning in 1968 with my dad, as a young lad of 7. Later that day we watched my first ever live F1 grand prix.
And after that, stood back in the paddock and witnessed my dad purchase Brian Roberstons' championship formula Vee! Suddenly he became a roadracer, and we towed home the Beech FV! It was later apparant that our little car had played a large role in launching Wayne Kellys' fabulous line of racing Vees in more ways then one.
The next 12 years of my life were the very best of times possible between a father and son! Culminating with him racing in "our" own crafted car, that i had designed and fabricated for him.
In addition to Mosport we travelled and raced at Harewood, Sanair, St Jovitte, Three Rivers, Watkins Glen and Nelson Ledges. But in his own words, many times "nothing compared to the challenge and risk/rewards of Mosport! Risks indeed, as I witnessed my best racing friend losing his dad one Sunday afternoon between turns 3 and 4 , in "the chute" as it was known!
I am a proud canadian for a great many wonderful reasons, and our racing capabililities of Eppie Weitsies, Horst Kroll, Moe Carter, Gilles Villenueve, Brian Stewart, Paul Tracy, Robert Wickens, ....and my incredible dad and hero, to name a few!
And that fabulous track, that has stood the test of time, and a legacy that rivals in its own wonderful way, that allows all Canadian racing fans to be very proud!
Not a knock against Mosport at all, but it feels like Mont Tremblant is being sold short here.

Honestly, both circuits have quite a few of the same ingredients. They're just combined a bit differently, so you don't get exactly the same flavor between them.

They both had a "hump" on the backstretch, something they had in common with Westwood, too.

Speaking of risk, Jackie Oliver flipped off of the Hump during the Can-Am race at St. Jovite in 1970.

Both start on a high point, then dip, come back up to another crest, and then plunge downhill again. In the downhill direction, Mont Tremblant had a "chute" between Turns 2 and 3. As with T4 at Mosport, this has been opened up with the track being refurbished, but without the corners being realigned in Mont Tremblant's case, thankfully.

That sudden drop is where there was a really nasty FA/F5000 crash in 1969, caught on camera thanks to filming by James Garner with his race team.

Turn 7 at St. Jovite isn't exactly slow, and is off-camber, much like T2 at Mosport. It may not have the dive into it, but it doesn't have the run-off, and you have a good run at it coming from T5.

I might liken T8 at Mont Tremblant to T3 at Mosport. They're both more moderately quick, opening right-handers, situated on more level ground than some of the other circuit elements.

I guess you could compare it to the final pull up the Mario Andretti Straight and under the bridge, but the uphill "chute" from The Gulch to Bridge is definitely more dramatic and gives a stronger sense of heading into a funnel there.

And while Namerow (T14) isn't as unconventional as Moss, the dip, climb, and then level-off heading into it certainly makes braking interesting.

Don't get me wrong, I really like Mosport as well, Its relative simplicity is rather refreshing, especially these days with all the over-complicated Tilkedroms and whatnot out there. It wins out over St. Jovite in terms of average speed, though I imagine the factory LMPs, if the ALMS had had the chance to run Mont Tremblant, would have averaged 120 mph or better in Qualifying.

I also find it quite plausible that Mosport has more difference in height from high to low than does St. Jovite, though I think the figures that come up for both in a quick Google search are on the low side.

It doesn't hurt Mosport's exposure having all those ALMS race broadcasts/streams on YouTube. Conversely, I've only found highlights for 1 or 2 of the Grand-Am 6-hour races, and then, of coure, the 2007 ChampCar race broadcast.

Anyway, it's always nice to hear from someone who actualy got the chance to be there in the flesh. I definitely came along too late to see quite a number of circuits, or at least to see them at their peak.

Hope I didn't ramble on too long. Racing circuits are kind of my thing, even more than the cars themselves in some respects, perhaps. And Canada has 2 excelent, natural-terrain, permanent road courses it can rightly be proud of.
 
And Canada has 2 excelent, natural-terrain, permanent road courses it can rightly be proud of.
I would say 3. Calabogie, of the 3, is my personal favorite. Done track days on the 3 of them, love the experience on the 3 of them.
Mosport is the scarier, Tremblant more majestic but Calabogie is a gem to discover.
It is available in AC.(as is any other Canadian track from coast to coast).
 
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