There was a ROBIN RELIANT going round the town a few years back with a Massive exhaust. The engine is only something like 0.5litres! It sounded like a midget farting in a didgeridoo!
my wife 1st car a 1.1 metro. it was about a year and a half after she sold it it. i had a go as it was a mate who had bought it to learn to drive in. it was only running 3 cylinders and sounded like it would blow at any time