With all the details confirmed but no sight yet, BMW’s terrible beast— the new X6 M, has just been spied with the wraps off. Fitted with a newly-developed 4.4-litre twin-turbo V8 that outputs nothing less than 555hp and a maximum torque of 500 lb-ft, it proves disgustingly powerful and imposing. Featuring a 6-speed M Sports Automatic transmission with full automatic mode as well as M driving mode and a Dynamic Performance Control system for better grip, the X6 M is capable of a max speed of 155 mph (electronically) and a 0-60mph sprint in less than 4.5 seconds. Although it’s going to cost a lot to bring this behemoth home, it’s what’s under the hood that will make you feel for it. We know we do already … [via WCF]