Whatever you call it, this bicycle fendered wonder that was the fruit of Colin Champan’s imagination may be one of the most individually tweakable designs of all time. The folks over at Project Splitwheel are working on tweaking that concept behind that idea further than most. Think lighter, faster, more pure and you have an idea where they are going. In the mean time, they are having fun with some existing 7 based concepts. Last Friday, they shared 5 of the fastest Sevens ever. Check out the Caterham R500 Mk2 as The Stig wrings the poor little monster’s neck and then visit their blog to check out some other frighteningly fast Sevens.