An Alpina XB7 version that’s powered by a 612-hp, twin-turbocharged 4.4-liter V-8 is also available. X7 competitors include the Mercedes-Benz GLS and Land Rover Range Rover. Power side window ...

One very rare model produced by Alpina was the Roadster S, an open-top sports car based on the Z4 that arrived just after the turn of the millennium. With its manual gearbox, upgraded engine ...