Straight line speeds are a result of engine performance and drag. The more the downforce, the more the drag. Drag is the resistance the car experiences from the air it is punching through, and downforce is generated by using the air that is moving around parts of the car to push the car onto the road. The Red bulls have been the quickest around most circuits because their car, penned by the genius Mr. Newey, usually is the quickest around corners as it produces the most downforce and therefore the most grip. More grip means being able to get on the power earlier than in other cars and hence a better lap time. This is the reason that their car is slower than most in a straight line, but in no way does it mean they are not going to be competitive come qualifying at Melbourne.
Speed Trap - F1 Barcelona Preseason Test 2013
|Force India||Sutil / Di Resta||316.7 kmph|
|Toro Rosso||Vergne||311.2 kmph|
|Red Bull||Webber||307.7 kmph|
|*Caterham - Trouble with the transponder|