Mecum has another legendary muscle car heading to its Kissimmee auction. Previously, we saw a 2022 Dodge Challenger retromodded into a modern Plymouth Cuda. Now, there will be a restored Plymouth Road Runner with some epic mods, including the magnificent Hellephant Engine. 1968 Hellephant Plymouth Road Runner: DetailsIn 1968, the Plymouth Road Runner had two engine options: the 383/335 horsepower V8 or the benevolent 426 Hemi. This particular Road Runner was equipped with a 383 CI 4-BBL and a 4-speed manual transmission. The car retains the original interior and is accompanied by a copy of the…