13. 1977 Dodge Aspen R/T
The 1977 Dodge Aspen R/T left the factory with modest performance, failing to impress muscle car fans. However, performance tuners quickly saw its potential, adding headers and four-barrel carburetors to unleash hidden power. These upgrades transformed the Aspen R/T from an overlooked underdog into a true street contender, capable of surprising rivals at the stoplight. Learn more about the Aspen R/T’s transformation at Hagerty.