2012 Infiniti M Hybrid priced from $53,700

Infiniti is touting its 2012 M Hybrid as the “only vehicle in America to offer more than 350 horsepower and 30-plus miles per gallon.” If that sounds like an excellent combination, the Japanese automaker has just announced that the cost of entry is $53,700.

The 30-plus mpg figure is, of course, on the highway, with an EPA estimated fuel economy rating of 32 mpg. The M Hybrid is rated at 27 mpg in the city and has a combined rating of 29 – not too shabby for a car with 360-horsepower on tap, courtesy of the 3.5-liter V6 mounted under the hood. $53,700 is a lot of scratch, but there’s not a lot of luxury sedans on the market that offer that much power while retuning that type of fuel economy. Hit the jump for the official press release.

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Brabus claims the world’s fastest, most powerful sedan with new SV12 R Biturbo 800

Mercedes-Benz is no stranger to wickedly powerful and insanely fast luxury sedans. After all, its AMG models are among the fastest and most powerful on the market. Leave it to specialty Benz tuner Brabus, then, to take it the extra mile… and then some.

The freshly unveiled Brabus SV12 R Biturbo 800 claims the mantle as both the fastest and most powerful sedan on offer. To get there, the German tuner has tweaked the 5.5-liter V12 from the S600 to 6.3 liters, fitted a new crankshaft, camshafts, cylinder heads, air intake, exhaust, turbochargers, quad interoolers and bigger pistons, and of course, remapped the ECU. The result is a massive 788 horsepower (800 in metric form, hence the name) and 1,047 pound-feet of torque. The twist is so massive, however, that Brabus had to electronically limit it to 811 lb-ft. Don’t worry – performance hasn’t been hindered. 0 to 62 sprints are managed in just 3.9 seconds and its Autobahn-devouring top speed is electronically limited to just 217 miles per hour.

Bigger brakes help keep the beast under control, as well as a new limited-slip differential. A full aero kit and upgraded rolling stock are on hand, as well, completing the “we mean business” look. Check it out for yourself in the gallery below, and hit the jump for Brabus’ official release.

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