3 Series 4 Dr enhance your sedan's look. Superchargers add great performance. A good way to update the grocery getting is replacing your 3 Series 4 Dr. For more horsepower and torque, get a Supercharger. Overall Style and performance are improved by changing your 3 Series 4 Dr. Superchargers are great add-ons for cars and trucks that need extra towing or passing power. Superchargers are a fantastic addition to your ride.