May I recall the Nobel 200, reputedly based on the German Fuldamobil? It was assembled from various components in Belfast in the early 1960s, a venture not unconnected with the generous grants available to manufacturing at that time. The usual sequel was when the grants ran out, so did the recipients ...
Anyway the horrid little car on its tiny wheels was powered, if that's the word, by a 200cc Sachs two-stroke which could be started by key to run in either direction, giving it four speeds forward and four reverse. This opened interesting if disastrous possibilities, some of which transpired.
The last one I saw was in central Belfast, blazing merrily. Apparently a leaking carb had dribbled onto the hot exhaust pipe, but nobody heeded the clouds of blue smoke as this was quite normal for the two-stroke Sachs. It was indeed bad luck for the owner, as the exhaust pipe could be relied upon to fall off every 20 miles, a serendipitous if unintended safety feature.