The IS200 engine is flat as a pancake below 4,500 rpm, you need to keep it between there and the "red line" to get the best out of it.
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The only time the IS is flat as a pancake, is when its in 1st gear, keep it out off 1st and the IS pulls as good as any car on the road, :D But it helps if you have a Turbo as well :P :winky:
as 2 guys in a Golf GTI looked like this > when i passed them on the A2 lastnight
if you think the IS is flat, get a Turbo droped in the IS....................it like haveing a NEW car