http://www.autocar.co.uk/car-news/frankfurt-motor-show/new-alpina-b4-and-b6-spotted
The Alpina B4 Biturbo — Alpina's answer to the BMW 4-series — is likely to share its mechanical package with the new B3 Biturbo, with power coming from a twin-turbo straight-six engine with 404bhp and 443lb ft. The B4 is tipped to be launched at the Geneva motor show in March before reaching the UK next summer.
The Alpina B4 Biturbo — Alpina's answer to the BMW 4-series — is likely to share its mechanical package with the new B3 Biturbo, with power coming from a twin-turbo straight-six engine with 404bhp and 443lb ft. The B4 is tipped to be launched at the Geneva motor show in March before reaching the UK next summer.