Nobody would call the current BMW M4 Competition xDrive’s performance lacking. With over 500 hp on tap from a 3.0-liter, twin-turbo inline-six (dubbed as the S58 among enthusiasts), and all ...
BMW says the M3/M4 Competition xDrive models ... Once the car is moving, the CB3 really begins to eat into the production-grade M4's performance. The quarter-mile zips by in 10.6 seconds at ...