2010 Mercedes-Benz S400 Hybrid The S-class gets a minor update this fall, but the big news is the arrival of the S400 Hybrid, which combines a 3.5-liter V-6 and an electric motor for 295 hp and 284 lb-ft of torque, enough to send this long-wheelbase sedan to 62 mph in 7.2 seconds, yet it delivers 30 mpg (combined) in European testing.
2010 Mercedes-Benz ML450 Hybrid Also out this fall is the ML450 Hybrid. The ML is able to run on pure electric power or in concert with its 3.5-liter V-6. The combo makes 340 hp and 354 lb-ft of torque; all-wheel drive is standard.