The Dodge Charger LX is a rear-wheel drive four-door automobile introduced in February 2005. Built by Chrysler for its North American Dodge brand, the car was created to continue the Dodge Charger line, and replaced the Dodge Intrepid as Dodge's full-size sedan. Dodge Charger (2006-2010) shares the LX platform with the Chrysler 300, the newer third-generation Dodge Challenger, and the discontinued Dodge Magnum. The first Charger was a 1964 show car, based on the Dodge Polara and fitted with a 426 Wedge V8 engine. The first production Charger, based on the Dodge Coronet, was introduced as a 1966 model. In 1999, Dodge introduced a new Charger R/T concept car. It took many styling cues from the 1960s Chargers, sharing their long nose and rearward cab, but was much shorter at 187 in (4,750 mm), compared to 203 in (5,156 mm) for the 1966 Charger. It was also 650 lb (295 kg) lighter.