I really, really like the 4C and have been contemplating how I could swing buying one (I'd have to sell 2 or 3 of my current cars, including the Fiero). The only let down for me is the lack of a real manual transmission. I think I'll wait to see what they do on the secondary market a couple of years from now and just pick up a nice lightly used one.
But like the Boxter there is no casual way to access the engine. It's not targeted towards the do-it-yourselfer.
There are few cars targeted at the do it yourselfer anymore.
To be honest I really did not see the Fiero living much more than 4-5 years more. The two seater segment is difficult to produce in a lower priced segment. Also the cars in this segment go for about 5-10 years at best. Time has claimed them all in the under $50K segment accept the Miata.
Even the Solstice sales were not enough to even convert it to a Buick or Chevy.
Affordable and low volume is a most difficult formula to match. They both work counter to each other.