By Läel Damasceno
April 18 2009
Both McLaren and Renault have bolted on to their cars the new legal diffuser. The effect can be called immense by some judging by practice times and qualifying times. Red Bull on the other hand seam like they don't need this piece of carbon to go any faster.
The new design is a long way from being a copy of the double decker but it will be a major improvement.
In FP1 the cars came in 1st and 4th, but when FP2 came the best McLaren in 9th was a second off the pace.
The team is also sporting a new six plane wing which will aid with front grip.