Despite its sleek design, the MKZ is a bit of a quandary: It shares its underpinnings with the Ford Fusion but costs more. There are two gas-engine choices plus a hybrid version. The base engine is a 245-hp 2.0-liter turbo four-cylinder; a twin-turbo 3.0-liter V-6 is optional with 350 hp for front-drive models and 400 hp with all-wheel drive. Both engines have a six-speed automatic. The hybrid is front-drive only with a CVT. The 400-hp MKZ hit 60 mph in 4.8 seconds in our testing.