BMW M3 E92 has 4.0-liter S65 V8 engine that generates 420 hp and 400 Nm. However, this one in the photos hides an entirely different heart, which beats very strongly.
This M3 got a V10 powerplant from BMW M5 E60. The standart 5.0-liter size of this engine was increased to 5.8-liters. Now it generates the power of 640 hp and sends it to the rear axle via a manual gearbox borrowed from the same M5 E60.
This job was made by Alpha-N Performance. Also the company installed adjustable suspension, better brakes with six cylinder calipers in the front and four at the rear. Discs diameter is: 380 mm - front and 355 mm at the rear.