The Dodge Challenger is the name of three different generations of automobiles marketed by the Dodge division of Chrysler. The Dodge Silver Challenger was produced in 1959. From 1970 to 1974, the first-generation Dodge Challenger pony car was built using the Chrysler E platform, sharing major components with the Plymouth Barracuda. The second generation, from 1978 to 1983, was a badge engineered Mitsubishi Galant Lambda. The third, and current, generation was introduced in 2008 as a rival to the evolved fifth-generation Ford Mustang and the reintroduced fifth-generation Chevrolet Camaro.
The mid-level Challenger R/T is powered by a 5.7 L (345 cu in) Hemi V8 coupled to a 5-speed automatic transmission or a Tremec TR-6060 6-speed manual transmission. On cars equipped with the automatic transmission, the engine features the Multi-Displacement System and produces 372 brake horsepower (277 kW) (SAE) and 398 lbf·ft (540 N·m) torque. With the 6-speed manual transmission, the Multi-Displacement System option was deleted and the engine produced 376 brake horsepower (280 kW) (SAE) and 404 lbf·ft (548 N·m) torque. Another feature was the Intelligent Deceleration Fuel Shut-Off (iDFSO), the first to combine both a Multi-Displacement System and fuel shut-off. The final drive ratio was 3.06:1 on cars with the automatic transmission, 3.73:1 on cars with the 6-speed manual and 18-inch (460 mm) wheels, or 3.92:1 with the 6-speed manual and optional 20-inch (510 mm) wheels.
Also available on the R/T was the "Track Pak" option group, which includes the Tremec manual transmission, a limited slip differential, and self-leveling rear shock absorbers. The 5.7-liter Hemi V8 was further updated for 2011 and also includes cylinder deactivation on manual models.
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