In view of Derec 'shuddering to think what else I've owned' in response to my statement of satisfaction with the efficiency and durability of my large van, I am perhaps one of the few other Americans in this thread that has had extensive experience with the BMC 948-1275 series of engines, as a former owner of '59 & '61 'Bug Eye' Sprites as well as a 1974 MG Midget as my daily driver commuter vehicles for years.
(the point being, I am actually
very familiar with such very small and economical vehicles -and their inherent limitations, as that is what I by personal choice lived with for years)
I really enjoyed driving my BMC toys, but on a dollar-per-mile basis, comparing all the costs of ownership, over the long haul, I'd guess one of my big old vans would prove to be at least 6x more durable, trouble free, and less expensive, as well as being far and away more practical in everyday use. How many MG's do you think ever exceeded 500k miles? None of mine made it to 100.
ETA. And speaking of shuddering ....one has to personally experience the 'thrill' of driving a 43hp 30" high 'automobile' on a up-grade _peddle to the metal, with a semi traveling 70+ closing the gap by the second. Thrilling hardly describes it.
Been there done that (way too many times), no more.