Four
strakes lie in the rear diffuser. Two lie inboard and run the full
length of the rear diffuser. Two lie outboard and are about 1/3 the
length of the main strakes.
At
the Road Atlanta race in '03, the Dyson Lola B160 sported a gurney
lip across the trailing edge of the engine cover. This helped balance
the increased downforce created by the new diveplanes and revised fender
trailing edges. 