It's a lot more forgiving then gt4 luckily. You still get away with slight bumps (as long as you don't push them off track) and you can get away with going half of track yourself. One of the tests in gt4 was do a full lap of Nurburgring Nordschleife without ever touching one wheel over the side. The AMG driving academy in gt5 doesn't care how you get to the end.
Kubelwagen was pretty easy, just there for comedy effect. The game completely takes the piss out of itself by having 2 streams of cars drive into eachother on set paths.
Some are very tricky though, oh well bronze is good too :) Though I can't even get bronze on the 2nd and 3rd Sebastian Loeb challenge, not even close :(







