Virgin Racing may introduce a blown diffuser to its VR-01 challenger later this season.

Previously, the new British team ruled out diverting resources for the development of rear wing stalling system. Timo Glock told Auto Motor und Sport: "The (blown) diffuser is a possibility."

He explained that with the stalling system banned for next season, the system didn't warrant the costs. "It is not worth doing it for just a few races," he said.

Blown diffusers, the Red Bull-pioneered concept that was subsequently copied by other top teams, is now being seen even on the cars of smaller teams.

Williams debuted its version at Silverstone, Sauber at Hockenheim, and Force India's version will be tested on Friday at the Hungaroring.

"We will analyse the findings and any data will be fed back into the programme for the second half of the year," said team boss Vijay Mallya.

The diffuser is credited for Ferrari's improved pace in Germany, while McLaren is still getting the most from its version. Auto Motor und Sport reports that the team is waiting on a supply of heat tolerant material to arrive from France.

"Only at Spa can we use our diffuser's full potential," Martin Whitmarsh is quoted as saying.