It sure doesn't fit 6'plus -footers, but I'm 5'10" and I loved it. That engine is bullet-proof. Shifts great. A true sports car- which may be a problem for many. It is much roomier than a Midget, but has about the same cabin space as a TR3 or MG. Unlike those cars, it has decent heat and air, roll-up windows and luxurious things like that. Trunk space holds a sandwich and a thermos. Just like the other real sports cars. You either like that or you don't.
However- having driven in the mountains quite a bit, I have a strong suspiscion that a bigger/heavier lump could easily overwhelm the tyke. Maybe with a really heavy-duty suspension... But also, there's not much room to put something bigger in there, I don't think. Been a while since I sold mine to pay another month or two of the mortgage. > sigh <