I am a relative newbie to this forum. I noticed that motorcycles are frequently mentioned in the posts on this forum. I've been riding motorcycles for many years. I find many similarities between Smart cars and motorcycles. Both are small and extremely maneuverable. Both are ignored or targeted by our fellow drivers. A three cylinder dual overhead cam high compression, four valves per cylinder engine develops adequate horsepower for either vehicle. The transmission and engine work together with a similar shifting pattern, especially when driving the Smart in manual mode. Service and maintenance procedures are similar, though I don't know any dedicated motorcycle rider who would ride 10000 miles between oil changes. Most of us are driving around without a spare tire. There are many other similarities but I think you get the point.