The Alpina B6 (F12) is the third generation of the high performance grand tourer manufactured by German automobile manufacturer Alpina. Introduced at the 2011 Tokyo Motor Show, the B6 was based on the BMW 6 Series and was available in coupé and convertible body styles, with the latter being introduced at the 2011 Frankfurt Motor Show. A third saloon bodystyle called the gran coupé was introduced in 2014.