Yes, definitely!
There is a sports prototype body in 1959 and I chopped the roof off:
Hi Doc! 
There are no stupid question and the Tech Pool / Quality system can be confusing. In general, you are right: Just set the Tech Pool to the values given in the rules. The Tech Pool may unlock additional parts such as the semi clad undertray for sports prototypes. Quality is independent of that, and you are free to use any quality setting (except for tires which have an upper limit).
Hey speaking of invisible roofs whatās the most efficient way of attaining that outcome? Usually I just place dozens of transparent cut out patches, but I am wondering if there is a better way.
Unless there is a separate roof paint slot thatās pretty much the only way. Only way to make it easier is use as large pieces as possible
As Der_Bayer confirmed, thereās no reason these couldnāt be racedājust make sure the wheelbase is long enough. Both those cars had a wheelbase of about 2m in real life so you should be good.
On this topic, it may be worth pointing out that not every car in the sports category had an open top in real life. Many of them were closed, possibly for aerodynamic reasons? Even though you could maybe call them GT cars, they raced in the Sports class because they were not production cars.
What Iāve found seems to indicate that homologation required 100 cars to be produced to meet GT racing standards in 1960.
Quick question, how do i private message so i can send the car file? iāam very new to automation comunity posts and this is my first time submiting for a challenge
New accounts canāt PM at first. Youāll need to passively browse like 5-10 minutes to unlock it.
Once you get it, click on the userās photo/name and select āmessage.ā
thanks mate
What numbers you guys are getting for your thermal efficiency index ? Iāve been getting between 0.7-0.8, Iām wondering how I can boost that number without sacrificing RPM and compression, let me know if you have any suggestions.
Iāve got higher than 1.2 since iām chasing it rather than overall victory. Higher compression ratio actually improves that. Another tip i can give you is improving drivebility and reliability since they improve overall race pace without increasing fuel consumption. Also smaller engines will tend to do better than larger ones.
If youāre aiming for an overall/class victory, I wouldnāt worry too much about ITE. In real life they were pretty different goals.
Kind of nervous about what kind of speeds everyone has their car at 
Super hard to tell if Iām the fastest or the slowest
very true but im looking at how much fuel my car is consuming per lap and for a small motor its consuming ALOT lol
For what itās worth, several real cars were in the 0.7-0.9 range. A Porsche 718 with a 1.6L engine recorded 0.71. D. B. with an 850cc engine recorded 0.86 while a Ferrari with a 3L engine did 0.89.
Of course, that was a wet race and the possibilities in Auto can be pushed a lot further than IRL cars canā¦ But still, 0.7 isnāt unrealistic.
Iām prepping the coupe I made for the twin trim challenge for race use. Almost done, but having trouble with the race number decals. How do you guys make them?
Iām getting several different results for US racing colours so idk which colour scheme to use
Also to the Grand Tourers need bumpers?
Step one (optional): Place a circle decal on your car where you want the numbers to go. Scale, colour and position as needed.
Step two: Place an āEditable Textā fixture on your car. Just slap it on for now.
Step three: Type the number in the editable text field.
Step four: Align the text as desired.
The problem I am running into is that I have no circle decals. The one under decals is like a quarter circle? And the cutout ones donāt act right on this car.
Using that quarter circle fixture, you can duplicate and rotate it to make a full circle. Doesnāt look perfect (different shading for each piece) but itās close enough.
I personally donāt know of other effective methods: more experienced users probably will.
