用的是这个,ZF 8HP transmission和Bentley,宝马一样,The ZF 8HP is an eight-speed automatic transmission, designed and built by ZF Friedrichshafen AG's subsidiary in Saarbrücken.[1] It had its debut in the new BMW7 Series 760Li saloon fitted with the V12 engine and since then each new BMW model in all Series down to the 1 Series in rear wheel drive and all wheel drive version was equipped with it.