For me these work very well both online and career, and the one car that have been downloaded by community did get 5 star rating.
Trans Am 1973 C-class(good for Prague)
Nissan 370Z B-class(all around)
Chevrolet ZR-1 1970 B-class(very tight)
Ford GT 2005 A-class(fast and fun)
Pagani Zonda R-class(very fast off the line and easy without assists)
Hope some of this tunes match some of Your guys drivingstyle, and feedback is always welcome.