Had a bit of a play with a 530i yesterday evening. Crikey, they're pretty nippy aren't they?! Without trying to kill myself, I was definately giving it 8/10ths or so and he didn't seem to have much trouble keeping up in the twisties and on the roundabouts. Off the line and up to about 40 the Elise seemed to have the measure of the BMW but anything over 60 and the 530i would happily pull away. Nice car.