This is more of a visual thing... but when cornering, the scenery alters bit shifting the way the car is swaying. When you see the car leaning, so does the background. It's pretty cool.
BTW... You get one lap around Silverstone when you first start, then you buy a car, which is a Leaf, then off to Autumn Mini and Suzuka East. You start will 100,000 credits and the Leaf will cost you 45,000 of that, plus for the races you win, you'll get 8,000 cr. Anyway, back to it.