Alpina B5 Biturbo Touring, XD3 prototype review

The Alpina B5 Biturbo Touring is the V8 BMW 5 Series wagon you were never meant to have, as Alpina’s car is the only current-spec 5 Series Touring with a bent eight. While the sedan was launched here last May, this wagon variant means you can get to 100km/h in 3.7 seconds and, where possible, on to 322km/h with Fido and his dog bowl in the back.