I went from an m3 to a volvo S70 T-5 five speed.
Im telling you the truth when i say that the volvo with few mods will hand the average m3 owner his ass.
They're pretty easy to modify, but its hard to find performance accessories for them.
An intake, exhaust, chip, downpipe, and a few other mods will get that car pushing around 300 hp with very little drivetrain loss. When the turbo kicks in.... its gone.