Building cars is hard. Look no further than news about Tesla nearly every day as evidence. So excuse Florida-based Revology Cars if its brand-new, built-from-the-ground-up 1966, ’67 and ’68 Mustang replicas, equipped with modern and upgraded technologies, exhibit a few rattles here and there. Furthermore, it’s OK the brakes feel just a little weird sometimes. And I’m not concerned that there was a door closure problem on one of its earliest cars. After you drive the inspiration, a 1967 Ford Shelby Mustang GT500, Revology’s strengths become crystal clear.