Originally posted by qtiger
Yes, but the Z4 is a roadster. The IS300 is a performance sedan. 2 pounds per horsepower is not a large move when you consider that fact.
you're kidding right?
2lbs per hp is not large move when you consider the fact that one is heavier than the other?
2lb/hp is 2lb/hp regardless of the type of car. am i missing something?