It gives the AC Schnitzer M3 Touring 602bhp in its most potent form ... AC Schnitzer is offering a less restrictive stainless steel sports exhaust system, complete with valve control for those ...

In the '90s, BMW tuner AC Schnitzer could convert the lowly 318ti into an M3 fighter, but the upgrades weren't cheap. MotorWeek takes a spin in the German pocket rocket in this Retro Review.

AC Schnitzer is the latest, giving both the M3 Touring and sedan a makeover. The aftermarket specialist offers the M3’s twin-turbocharged 3.0-liter inline-six engine with two tunes. The first ...