Can't believe this hasn't got a mention yet (unless I. missed it).
I would plump for a GD (Gardener Douglas) Cobra replica with a tuned NA V8. My next door neighbour has a superb example with a small block motor that he built and tuned himself. 500 bhp with a manual transmission and an exhaust note to die for from the side pipes. The whole thing weighs about as much as my P6 and is extremely rapid and torquey. Not the most spacious sports car, but neither are most Morgans. It is a crowd-pleaser wherever it goes.
Circa £50K for a top example.