Screen Tearing is very common, reguardless of the amount of cars or the track. Slowdown is very common in races with more than 8 cars in a race, with 3 cars on the screen at once. Some cars look great, some look poor in comparison. Here are some pics from my races.
Special Stage Route 7 with rain

High Speed Ring with rain

Flipping a premium car



After flipping the car 7 times:

Damage seems to take way too long to show up, as you can see. The rain effects make all the cars look really bad.








