In the UK where the 745i wasn’t available, there was a market for a more powerful 7-series car than the 735i. Therefore Alpina´s U.K authorized dealer Sytner offered the 735i B10. Even though the 735i B10 was built in Great Britain it was a real Alpina with a handbuilt 261 bhp, 3,5 litre, 6 cylinder engine which was delivered from Alpina to Sytner. Both manual and automatic gearboxes were offered.

The rest of the car was also pure Alpina including special gas-filled Bilstein shock absorbers and progressive rate springs, 16in Alpina alloys, Alpina front and rear spoilers and all of the other smaller bits and pieces which distinguish Alpina´s cars.

The B10 3.5 accelerated from 0-100 km/h in around 7 seconds and had a top speed of nearly 235 km/h. That is superior to the 745i. The 735i B10 is a very rare car, only 37 examples were built.