" http://www.youtube.com/watch?v=gosJz...layer_embedded "

" As much fun as that may be, all costs covered that could be an expensive bill

A gift certificate would do wonders. Probably the best option.
Everybody is in a different stage of upgrading their car, and as FlyingX5 says it does not limit the prize to N54's only.
And each person's wish list looks different.
Also, with the prize money per prize not too high and the prizes spread between 5 to 10 people the winners would overspend their prize budget at the vendor making everyone happy.

A good moment to be generous "

" I think 2000hp in a Gallardo is quite insane.
This video proves it

http://www.youtube.com/watch?v=Mmx26LjxeMo&feature=player_embedded "

" Robbie Kerr smashes the 1.2-mile Cholmondeley Pageant of Power sprint course record with a time of 55.29s during the last run of the 2013 event. Robbie set the record in a road-legal Radical SR8 RX despite having never driven the car or the course before.

http://www.youtube.com/watch?v=IfdVgEviVXI "

" http://www.youtube.com/watch?v=DTSbPB3nXDM&feature=player_embedded#! "