From experience (me infront in my scooby 300bhp, 300 twisty things, mate behind in our 1.8 K-series 140) I can confirm that the caterham stays with the scoob just up to the point the aerodynamics come into play. I drive both quite regularly and the scoob always feels like it accellerates much harder but on the road comparison doesn't bear that out, so I have always put it down to the completely different delivery. In some ways it's part of the joy of a turbo barge, the nothing, nothing, nothing - - here we go. requires a totally different driving style.
LoFi
FAt Car at the Back