Hi, I reckon that choosing the right car (by mainly handling)for the right track is more important than how fast you are or the cars build or the cars tune.
I am not saying it will put anyone in the top 500 or 100 but It should put people a lot more competitive in races generally without tuning or building or even driving faster.
I will put in a minimum handling and maybe another minimum stat for a car to choose for that particular track so you can pick a decent car for the track for what class you are in.
I will later today when I get home that I will do up a list of all the tracks for D,C,B,A,S and R class.
Trust the stats as a guide. (it works for me)
C class
Track Stats to look for
Berenes Alps Full 5.1+ hand
Berense Alps S 5.2+ hand
Berense Alps C 5.3+ hand
Berenes Alps Full -R 5+ hand
Berense Alps S – R 5.1+ hand
Berense Alps C – R 5.2+ hand
Bathurst 5.5+ speed 7.8+ acel
Cataluna About 5.3 hand
Cataluna National About 5.5 hand
Cataluna school About 5.7 Hand
Spa 4.9+ hand 5.9+ speed
Indy oval 4.9 + hand 6.0+ speed
Indy GP About 4.7 hand
Bugatti About 5.3 hand
Lemans 6.6+ speed 7.9+ acel
Old lemans 6.7+ speed 7.8+ acel
Long B 7.9+ acel
Long B East 7.8+ acel
Long B west 5.5 + Hand
Laguna Seca 4.9 + hand 7.4+ acel
Nord + GP About 5.0 Hand
Nord About 5.0 Hand
GP Circut About 4.9 Hand
Paruge 5.3+ hand
Prague S 5.3+ hand
Paruge – R 5.0+ hand 7.6+ acel
Prague S – R 5.0+ hand 7.6+ acel
Road Am 5.6+ speed 7.5+ acel
Road A -A 5.5+ speed 7.6+ acel
Road A East 5.9+ speed 7.9+ acel
Road A West 5.0+ hand 7.5+ acel
Road A West -A 4.9+ hand 7.7+ acel
Road At About 4.8 hand
Road At C 5.4+ Hand
Sebring F 4.5+ hand 7.8+ acel
Sebring S 5.5+ speed 7.8+ acel
Sebring C 4.5+ hand 7.9+ acel
Silverstone 5.1+ hand 7.6+ acel
Silverstone Int 5.2+ hand 7.4+ acel
Silverstone Nat 4.7+ hand 7.8+ acel
Test Track Airfield 5.4+ Hand
Top Gear F 5.0+ hand 7.2+ acel
Top gear E 4.9+ hand 7.4+ acel
Top gear W 5.3+ hand
Top gear loop 5.5+ speed 7.9+ acel
Top gear E- R 4.9+ hand 7.4+ acel
Top gear W- R 5.3+ hand
Top gear loop- R 5.5+ speed 7.9+ acel
Yas Marina 4.4+ hand 7.8+ acel
Yas Marina N About 8.1 acel
Yas Marina S About 8.1 acel
Yas Marina Corkscrew 4.9+ hand 7.7+ acel
Yas Marina North Corkscrew 5.1+ hand 7.5+ acel