12 - volt accessory pwr outlet, 14.5 gallon fuel tank, 15 x 5.5 steel wheels w / full sport wheel covers, 2.0 L DOHC MPFI 16 - valve 4 - cyl engine w / Continuously Variable Valve Timing (CVVT), 3 - point retracting rear seat belts (ELR / ALR modes), 4 - speed automatic transmission, 60 / 40 split fold down rear seat (carsdesk.com)
Powering the Z4 is a choice of three engines, a 2.0 L four cyl TwinPower Turbo generating 240hp and 260 pound - ft of torque at just 1250 rpm, a TwinPower Turbocharged inline 6 cyl engine delivering 300hp and 300 pound - ft of torque at 1400 - rpm, or an enhanced version of the latter delivering 335hp and up to 369 pound - ft of torque. (cars.oodle.com)
The bad: the significant transmission hesitations are unacceptable and possibly unsafe, and the 4 cyl engine provides inadequate power when challenged. (carsdesk.com)