The rear wing of the McLaren MP4-25 has brought some unwanted attention from competitors Red Bull Racing and Ferrari as they have called upon the FIA to clarify its legality a week and half before the 2010 season officially starts. The first words have come from RBR team boss Christian Horner, where he explains what it is exactly that they're questioning.
“There’s a bit of a fuss over McLaren’s rear wing. They have a slot on it [that affects the air flow] and they can pick up a lot of straight-line speed," Horner explained to the 'Telegraph'. "I think it will get resolved before the first race. We’ve asked the FIA for clarification although I think Ferrari are probably more excited than we are to be honest.”
“Basically, if you stall the wing you take all the drag off it and pick up straight-line speed. It’s something that’s been done quite a lot over the years but with the wing separators you’re not supposed to do that."
Adding, "Our question ultimately will be: 'Is it clever design or is it in breach of the regulations’? They must be very confident that it’s legal. I would think it will be legal.”