1973 Plymouth Road Runner Apparel and Accessories by Legend Lines
The 1973-74 models received completely new sheet metal and had more conventional squared-up front-end styling and changes to the rear that more closely resembled the four-door models than the 71-72s. In addition, the interior options included retaining power seats and windows as well as offering plusher carpeting and seat covers, moving the car to a slightly higher level of luxury. The restyling helped sales which were up 40% over the 1972 models. In testing 1/4 mile times were getting close to the 16s, top speeds had dropped to barely over 125 mph (201 km/h), and the car moved further away from "muscle car" status. The base engine for the 1973-74 models had dropped down to Chrysler's workaday 318 CID V8 but equipped with dual exhausts which bumped the power up to 170 hp. The 440 cu in engine, boasting 280 hp was still available for 1973 and 1974, but only mated to the 727 Torqueflite automatic transmission.