Rollover

I flipped my RX-8 on that same turn, however I didn't receive a trophy for it.

I just got it, too. R8 going 200+ MPH and slamming into one of the barriers on the Le Mans track. Whoops...

quote Ville_Valo

Got it messing around in that corner on Trial Mountain.
Bit of a disappointment. I was under the impression that rollover was never included because there'd be no damage, which would be weird. There's still no damage, even on premium cars. In fact they seem to take regular damage to bumpers and stuff when you roll them, rather than the expected roof damage.
Oh well. You don't roll much

Very true, but I did just find out (intentionally, of course) that go karts can do a backflip...

Got this trophy a long time ago, best track to do this on is Sarthe, at the end of the long straight

I got mine at Madrid in my E-Type Jag going over a massive kerb at the bottom of the hill

I got it accidently on the day I got it, didn't even do it on purpose or realise it was a trophy. Was just pissing about on the Top Gear track with the AEM S2000 testing out the damage on the game, crashed it full pelt at the end of the runaway barrier, and somehow that flipped it onto the nose which then let gravity tip it on the roof somehow.

ResistanceFailure, I think you have to land on your roof for the trophy to pop up.

I got mine at Trial Mountain while trying to cut the last corner.