The stability assist can actually help with drifting, certainly on lower values. Accidently raced with it set to 5-10% whilst driving the Yellowbird a while back and it made me look like a drift god, wasn't at all getting caught out by how much it likes going backwards... Then I realised it was the assist... 
A low value is just enough to give you some wiggle room and make it less prone to snapping.

A low value is just enough to give you some wiggle room and make it less prone to snapping.

The hint that the British pack could have something new, Jaguar XJ220 please!!! The Ferrari pack is bound to be good too, hopefully will include things like the F50, 250GTO, Testarossa, Daytona, 355 and the 550 Maranello
Holy moly.