BMW 4 Series

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ac Schnitzer bmw 4 series Convertible 01 830x553

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. This time around, it’s the 4 Series Convertible which gets the tuning treatment. The BMW 4 Series Convertible by…