I'd love to see an older style NASCAR stock car, like the Chevy Lumina. Someone was doing a NASCAR mod at one point, but its dead now. If I had the time I'd give it a go myself... maybe after I finish my degree. Something like this...
I'm already have my dream car in BeamNG But i would be glad, if there will be some place for the car, that resembles 90s Japanese sedans like Toyota Crown or Mark2-based models. JDM cars are never enough
I would love the Honda Prelude 5th gen (stock and with some mods (not too many) some as spoiler, jdm headlights, jdm steering wheel, yeah)
A soft top, 2 seater roadster like this early 90's Mazda Miata MK1 A powerful, raw and unpredictable race car like this 1960's Mclaren CanAm M8A --- Post updated --- An older American school bus like this 1970's crown supercoach or a conventional equivalent... possibly based on the T-65 truck chassis?
As the OP ask for one car and not list of cars; DeLorean DMC-12. This was instant name I got when I read "dream car".
I would like to have a WW1 tank if that counts as a car if it doesn't, I love the Daf cars (with the variomatic transmission so we can reverse as fast as we can drive forward )