Mike Coughlan believes that FW34-type exhaust is beter than this year's the 'Coanda' aerodynamic exhaust principle
Mar.27 (GMM) Williams could revert to the exhaust of its 2012 car, after struggling for pace and handling with the new FW35 so far this season.
He admitted "We need to go away and get a more consistent platform for the driver".
"We're of the opinion at the moment that a FW34-type of car would be faster," said Coughlan.
"I don't think we'll go back to an FW34, but we might go back to an FW34-style of exhaust system and treat Fridays as tests across cars."