- 4.4-liter twin-turbo hybrid produces 738 horsepower, 738 lb-ft of torque
- 0-60 mph matches X5 M Competition at 3.7 seconds
- Top speed of 175 mph, two mph slower than X5 M Competition
- Battery recharged in just 3.25 hours
This is the all-new BMW XM Label Red, and it’s officially the most powerful M model ever produced. The M Hybrid drivetrain has a maximum system output of 738 hp and 738 lb-ft of torque, which is a 94-hp and 74 lb-ft increase over the standard XM. The XM dethroned the M5 CS as the most powerful M last year, and now the Label Red has solidified the XM’s position as the halo Motorsport Bimmer.
The M5 CS is relevant because it uses a portion of the XM Label Red’s powertrain. In the CS, the 4.4-liter twin-turbocharged V8 produces 627 hp and 553 lb-ft of torque. In the Label Red, the same engine’s power is dialed back to 577 hp, while peak torque remains the same at 553 lb-ft.
But as we know, the secret to that 700-plus figure is the plug-in hybrid system. The electric motor, incorporated into the eight-speed M Steptronic transmission, contributes up to 194 hp and 206 lb-ft.