The eco-conscious version of Porsche's big four-door, the Panamera S Hybrid arrived in 2012, two years after the sedan's debut. This isn't just any hybrid powerplant, but a supercharged V6 with an electric motor that together generate 380 horsepower. Acceleration nearly matches the V8 Panamera, and yet the hybrid bests the standard V6 in fuel economy: 23 mpg around town and 28 on the highway.
Drivers can select E-Power mode and travel up to 43 mph on pure electricity. At speeds under 110 mph, coasting with your foot off the pedal shuts off the gas engine entirely. Not surprisingly, this efficient and powerful luxury liner commands a premium: $96,150 before options.