At $39,780, the Challenger R/T is the cheapest V8 Dodge you can buy. Dodge advertises the base MSRP of a Challenger coupe as $30,940. This actually makes it competitive with the cheapest, two-door Ram 1500 pickup truck. Both vehicles come with a 3.4-liter Pentastar V6 that makes 300+ horsepower. jgqO.