BMW Alpina B6
The B6 2.8 is based on the 323i, but uses the same B6/2 engine used in the B6 E21.
The car makes 210 bhp and 270 Nm of torque. Top speed is 230 km/h. 0-100 is achieved in 7.2 seconds. 259 cars were made from 1983 to 1986.
The Alpina B6 3.5 is based on the 325i chassis, but uses the M30 "big six" 3430 cm3 engine, upgraded to 261 bhp (192 Kw) and a whopping 346 Nm of torque. 0–100 km/h is achieved in 6.4 seconds. The engine uses custom MAHLE pistons and rods. The cylinder head was ported and polished, and a hotter cam was used. Top speed is 250 km/h. Suspension and brakes were upgraded. Bigger ventilated disks and progressive springs were installed at the front. Only 210 cars were made from 1986 to 1990.
The Alpina B6 3.5 S uses the M3 chassis. The 3.5s like the 3.5 uses the B10/2 M30 "big six" which makes 261 bhp and 346 Nm of torque. Displacement is 3430 cm3. 0–100 km/h is achieved in 6.4 seconds. Top speed is 250 km/h. The gearbox used is the famous Getrag 260/6 sport known as the "Dogleg Gearbox" with reversed 1st and 2nd gears. Only 62 cars were made from 1987 to 1990.