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2015 Dodge Challenger SRT Hellcat Automatic EPA-Rated at 13/22 MPG

Motor Trend logo Motor Trend 9/17/2014 Kelly Pleskot

The 2015 Dodge Challenger SRT Hellcat not only delivers 707 hp but also achieves up to an EPA-estimated 13/22 mpg city/highway.

According to Chrysler, the top fuel economy rating applies to models with the all-new TorqueFlite eight-speed automatic transmission. Those with the six-speed manual are rated at 13/21 mpg city/highway.

Either way you cut it, both numbers are better than the 580-hp Camaro ZL1 's top ratings of 14/19 mpg. They also beat out the Lamborghini Aventador Roadster, which nets 10/16 mpg with 700 hp, and the Mercedes-Benz SLS AMG GT, which achieves 13/19 mpg at 583 horses. System.Xml.XmlElement© Provided by MotorTrend System.Xml.XmlElement

The Hellcat's supercharged 6.2-liter HEMI V-8 benefits from a number of elements that make it more durable, including induction-hardened bearing surfaces that can withstand firing pressures of 1595 psi, which is enough to support five sedans standing on each piston, every two revolutions. It also includes heat-treated aluminum-alloy cylinder heads for better thermal conductivity. Improving efficiency on the eight-speed is a ratio spread of 7.03, while the six-speed manual receives an internal cooling pump, external oil cooler, and a stronger 258-mm clutch for easier access to the car's power.

Fuel economy improvements spread throughout the Challenger lineup. The 2015 Dodge Challenger equipped with the base 3.6-liter six-cylinder receives 19/30 mpg city/highway. The Challenger gets 16/25 mpg with the 5.7-liter V-8, or 15/25 mpg with the 6.4-liter on the Scat Pack models.

Source: Chrysler Group

2015 Dodge Challenger SRT Hellcat© Provided by MotorTrend 2015 Dodge Challenger SRT Hellcat

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