Dodge has released EPA fuel economy ratings for the 707hp Challenger SRT Hellcat, with the big news being the 22 mpg (10.7 l/100 km) highway rating.

The figure corresponds to the model fitted with the TorqueFlite eight-speed automatic transmission, while with the six-speed manual the Hellcat returns 21 mpg (11.2 l/100 km) highway. That’s not bad for a 6.2-liter supercharged V8 packing 707 hp, is it?

“As the fastest muscle car ever, the Challenger Hellcat can run 10-second ETs at the track, and then get 22 miles per gallon on the drive home. With a starting price of $59,995, there’s nothing else that even comes close,” said Tim Kuniskis, President and CEO for Dodge and SRT Brands.

To better put into context the Hellcat’s highway mileage rating, Dodge compares it with three supercars that are way more expensive, less powerful and less fuel-efficient.

 These are the Lamborghini Aventador Roadster (Dodge probably chose the roadster because it’s more expensive than the coupe), which has 700 hp, costs $425,845 and returns 18 mpg (13 l/100 km), the Aston Martin Vanquish, which has 576 hp, costs $287,820 and returns 18 mpg, and the Mercedes-Benz SLS AMG GT, which has 583 hp, costs $221,580 and returns 19 mpg (12.4 l/100 km).

Dodge says the supercharged 6.2-liter HEMI Hellcat engine features 91 percent new content compared with its 6.4-liter SRT cousin, better known as the 392 HEMI. The Hellcat engine is designed for durability despite the enormous loads that accompany its impressive power. Its forged-steel crankshaft has induction-hardened bearing surfaces that contribute to its capacity to withstand firing pressures of 1,595 psi (110 bar), which is the equivalent of five sedans standing on each piston, every two revolutions.

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