to be honest the 1/4 mile figures can be a bit duff.
at santa pod with the chavs, most reaction times were around 0.4-0.8 seconds, which demolished your end 1/4 mile times. Even the pro driver in a Touring Car Astra and VXR were only down to 0.3 seconds reaction.
The fastest two cars were a twin engined Corsa which broke a drive joint on its second attempt, and the VXR which outran a Touring car cause the TC had zero grip on the line.
So, the times you'll see at Festival will be dissappointing in many respects as its down to the drivers - and not the cars.
Having said that, if you compare a Mini to a Porsche reaction times dont come into it, but when comparing a VR6 vs 16v vs 8v, it could be closer than you want.
I am considering the 1/4 mile at Festival at the moment, if anyone else is, one bit of advice - practise your starts.
Tin