AC Schnitzer gives 420 hp to BMW 4 Series Convertible
German tuning shop AC Schnitzer reveals a new aftermarket project based on the BMW 4 Series, including extra horsepower and aero upgrades
AC Schnitzer 4 Series
The BMW 4 Series by AC Schnitzer now makes 420 horsepower
The AC Schnitzer performance upgrades for the M440i xDrive give a significant power boost: from 275 kW/374 HP/500 Nm to 309 kW/420 HP/600 Nm.
