I doubt that it would be by more than the variation in your launches, but I'd have to say the 530. Newer engine with probably a better fuel management system. Is that the one with the 3.0L engine they put in the 330s, or is that another mislabeled car like the E34 530? Because that new 3.0L engine will send a 330i to 1320ft in about 14.5s.
Originally Posted by Jason