[MENTION=20267]sca037[/MENTION], can you further explain? I say that I would prefer a 4C on track to a (stock) NSX because, for example, the lightness goes a long way in that situation. As do the superior brakes. And the quicker, more-direct steering (as compared to EPS in an NSX). I would call the 4C more akin to an Exige, a car I have driven on track and find quite different from the NSX. In that sense, I agree with what I think may be your point that the NSX and 4C are not equivalents.
And yes, it's inconvenient at best to have to remove a grate and use a funnel to fill the wiper fluid. The car does come with a bag of funnels, which (along with the manual) takes up a significant portion of the trunk. It's an odd little beast.