Power transmission in the BMW ALPINA B7 Bi-Turbo is taken care of by a new generation of the excellent 8-Speed Sport Automatic Transmission with ALPINA SWITCH-TRONIC. Further refined and adapted to the performance characteristics of the high-torque V8 Bi-Turbo in collaboration with ZF, the transmission offers exceptional driving comfort in all situations.
Extended gear steps and a total spread of 7.81:1 improve shift comfort and fuel economy. In Automatic Mode the combination of eight gears and high engine torque makes for relaxed, luxurious cruising at low engine rpm even when travelling at speed.
In Sport Mode the shift points are optimized for improved driving performance and gear changes are considerably more dynamic. For maximum dynamic performance, the driver selects the Manual Mode thereby actuating gear changes manually by using the SWITCH-TRONIC buttons on the back of the steering wheel.
All hardware components of the transmission are designed to specifically cope with the high torque output of the V8 Bi-Turbo engine - meaning that the typical torque reduction during upshifts is not required. This contributes significantly to the striking longitudinal dynamics of the new BMW ALPINA B7 Bi-Turbo with rear-wheel drive which accelerates from 0 – 100 km/h in just 4.2 seconds!