Random thought

Yeah I know, not exactly a revelation, but noteworthy nonetheless. The fastest car I have ever owned was a Saab 93 Aero. 2 litres of Vauxhall goodness with a bit of magic sprinkled on top, a very nippy car in my opinion. Helped by the fact that it got a bit of a tune up to 250bhp.

The only problem is that it wasn't a light car by any means. With a kerb weight of 1550kg, that gives me 161 bhp/ton. 

Now compare that to the kit car. The donor MX5 only has 113bhp, less than half of the Saab. But then it's kerb weight is 612kg, very much less than half. A quick calculation puts it at 184bhp/ton. So just on paper it's faster than the Saab.

Of course, there's lots of other factors on how cars get from A to B at a decent pace, but at least for power to weight it will be my quickest car so far.