There’s no mistaking the B7 for a bog-standard 7-series, though: 21-inch alloys, aerodynamic bumper with functional cooling vents and twin double tailpipes are all standard, and Alpina’s icon stripes are available, too. The bespoke cabin is equally well appointed, with illuminated door sill trims and liberal use of leather.
Standard equipment is predictably comprehensive, including four-zone climate control, cruise control, electric memory seats, a glass sunroof, parking sensors, self-levelling air suspension at the rear, sat-nav, Bluetooth connectivity and so on.
It’s the bits you can’t see that make the B7 so appealing. This is the first opportunity Alpina has had to turn up the wick on BMW’s 4.4-litre twin-turbo V8. But it’s more than just upping the boost and fitting a lairy exhaust; the modifications even extend to using different pistons.
Other, more common changes include an ECU remap and a range of extra coolers for the engine, turbo, hydraulics and transmission, which are necessary given the boost in power to 532bhp and 533lb ft of torque.
The result is a car that’s eye-wateringly quick, with a 4.6sec 0-62mph and a potential top speed of 194mph. It feels every bit as fast as the S 63 AMG. Good job then that Alpina has uprated the brakes, replacing the standard stoppers with the ones BMW fits to its armour-plated models.