The G80 BMW M3 Competition features a twin-turbocharged 3.0-liter inline-six engine producing 503 horsepower and 479 lb-ft of torque. It comes standard with an 8-speed automatic transmission and offers both rear-wheel drive and all-wheel drive (xDrive) options. The M3 Competition accelerates from 0 to 60 mph in 3.8 seconds with xDrive, but here's the Rivals version of the G80 M3. We've bumped the power up to a safe 1116bhp utilizing torque management to prevent the S58 from exploding...