It need to much time to get rpm after start and the bigger problem for me, the caster als abolutely to low. You cant set it from 0 to 7, but to get a plausible feeling for the car, you need 8-15. After i change it to
LeftCasterRange=(-0.0, 0.25, 60) // front-left caster
LeftCasterSetting=50
RightCasterRange=(-0.0, 0.25, 60) // front-right caster
RightCasterSetting=50
it makes a lot of fun.
With the Porsche you should be able to select with arms once you have selected your skin and then click on the showroom which will give you the option.
Appreciate the review, thank you!