Alpina B7 (E65)

Changes to the engine include an Alpina specific block, a forged crankshaft and lower compression[1] high strength Mahle pistons.

The engine also has an Alpina specific modified ECU and retains BMW's Valvetronic Variable Valve Timing.

The heat generated by the 0.8 bar of boost pressure from the supercharger is managed by a high-transfer rate air-to-air intercooler.

The engine is mated to a 6-speed ZF automatic transmission called Switch Tronic which has a manual shifting mode allowing the driver to change gears via buttons located on the back of the steering wheel.

[3] The engine was initially manufactured at the BMW Steyr plant and was then sent to Alpina at their Buchloe factory for final assembly.

The exterior changes include Alpina pinstripes on the paintwork, a rear lip spoiler, 21-inch Alpina classic multi-spoke alloy wheels wrapped in Michelin Pilot Sport 2 tyres (measuring 245/35 ZR21 at the front and 285/30 ZR21 at the rear), a front valence and a chin spoiler.

[5] A recall was issued for the post face-lift 2005–2008 BMW 7 Series models and the B7 equipped with Comfort Access and soft closing doors options.

The problem was that the doors could unexpectedly open due to certain driving conditions, increasing the risk of the ejection of occupants.

Alpina B7 (E65) (post facelift)