In some places, people will race just about anything. In Britain, this includes the Smart 4Two Cup, in which a bunch of insanely slow Smart cars putt around those venerable old aerodrome-style English motor racing circuits in support of the Britcar series.
It's truly momentum racing where the short wheelbase means that drivers are pretty much skating around the circuit, even moreso after the country's oh-so-frequent rains. Normally we'd frown on this idea, but this is essentially the realization of those awesome kei car races we love from Gran Turismo.
We don't suppose this will ever be supplanted by a Piaggio Ape Cup, but a man can dream, can't he?