click image above to enlarge

The good boffins at Winding Road have come up with a metric called Speed per Dollar (SpD). Its aim is to put straight-line vehicle performance into an easy-to-understand financial perspective. In light of the monetary component, the best and worst SpD ratings among the sample cars tested aren't entirely surprising: Ariel Atom at the top, Bugatti Veyron at the bottom. Supercars -- and their super prices -- would of course fare poorly. However the Mazdaspeed 3, with "just" 263 hp, climbs up the charts to score second place. As Winding Road admits, the chart doesn't take handling (or luxury or Making the Jones' Jealous) into account. But Autobloggers (and Winding Roaders, we're sure) are hugely interested in price-for-performance, and this is a novel new way to compare speedsters. Let the calculations, comparisons, and commentary begin.

[Source: Winding Road]