Dan,
Vehicle class is category A (question 8 I think). Have a look on TotalKitCar.com for examples (here:
http://www.totalkitcar.com/images/sv...mpleted_p1.gif)
Give Tony Holmes a call at Pilgrim. He'll give you the axle weights that you need.
As for max road speed & engine power, I put similar figures. I believe the Rover's max power output is at around 5500 revs.
Good luck with the test.
Tony B