The B7 BiTurbo is based on the BMW 750iX and with 608hp is the most powerful Alpina model to date. The B7 BiTurbo represents the fourth generation Alpina 7-series model and replaces the previous generation F01-based B7 BiTurbo.

In February 2016, at the Geneva motorshow, the B7 BiTurbo was introduced, available only as long-wheel-base Langversion with four-wheel-drive Allrad drivetrain. In RHD markets, the B7 BiTurbo is only available with rear-wheel-drive drivetrain.

The LCI version of the B7 BiTurbo was introduced at the Geneva motorshow in March 2019. For RHD markets, the B7 BiTurbo now also features four-wheel-drive Allrad drivetrain.

The engine in the B7 BiTurbo was initially introduced in the F01 B7 BiTurbo. It is based on the BMW 750i engine, with custom Alpina engine block, cylinder heads, turbochargers and internal parts. It has been modified to 608hp and 800Nm.

Heat management is improved by installing custom Alpina cooling package with radiator, engine oil cooler, transmission oil cooler, as well as extensive custom Alpina air ducting and intercoolers. Also, an additional electric water pump is installed.

The B7 BiTurbo suspension is based on the 750i, modified with Alpina settings and springs.

Wheels are 20-inch Alpina Classic design wheels with 255/40 and 295/35 Michelin Pilot Super Sport tires. Optionally, 21-inch Classic design wheels are available.

The front brakes are 4-piston calipers in blue with Alpina logo. The front disks 395x36mm are sourced from the M760iX, rear disks are 370x24mm.

The B7 BiTurbo undergoes the same interior changes as usual with Alpina. Cluster gauges are custom Alpina with classic blue background combined with steering wheel trimmed in Lavalina leather. Additionally, interior trim is fine Alpina wood or piano lacquer with Alpina logos. A no-cost option are Alpina badges in the seats. Optionally, a custom interior in Lavalina leather can be ordered.

For the exterior, the changes are limited to an Alpina frontspoiler, rear spoiler, rear diffusor and Alpina badges on the rear. A non-cost option is the classic Alpina decor on sides of the car and frontspoiler. Available exterior colors include Alpina Blue II and Alpina Green II.

Acceleration from 0-100kph is 3,7 seconds.

Top speed for the B7 BiTurbo Allrad Langversion is 310kph.