What is it? BMW's four-passenger sporty SUV will be powered by a twin-turbocharged V8 gas engine producing 400 hp and two electric motors delivering 91 and 86 hp each. Maximum output is 480 hp. The hybrid can run entirely on electric power up to a speed of 37 mph for 1.6 miles. The electric motor receives power through a battery pack positioned under the floor of the trunk. BMW claims acceleration will reach 60 mph in 5.4 seconds. EPA numbers are not yet available, but the European test cycle shows improvement of 20% versus the gas version, which currently gets an EPA rating of 15 mpg city and 20 highway.