If you had to nominate the archetypal Millennial car, it would be the hot hatch. The origin of the species can be traced at least as far back as mid-1976, when VW produced a higher-performance “GTi” version of its front-wheel-drive Golf hatchback.
The GTi arrived at a time affordable roadsters were disappearing (they didn’t really come back until the MX-5 and Ford Capri of the late 1980s) and people were looking for something smaller, cheaper and more frugal than the traditional big-engined performance car.