Hey fizbiz, like you, I learned on Fiat Spiders, MGs, TR7s, and yes, we had the very first TR8 in the USA (my Dad worked for British Leland).
The smart is not a smart unless it has it's unique transmission. The real fun is not making it behave like I think it should (I would have to redesign it to do that), rather, it's all about teaching yourself how to get the most out of what it is - and I'm finding you can really get more than you think out of it! (I'm 100% paddles).