P1racenews AI automatic summary:
Five times new Formula 1 cars delivered shocks
In 2009, the Brawn GP team exploited a loophole in the regulations to use a double decked diffuser, which gave them a significant performance advantage. Other teams protested the design, but it was eventually ruled legal by the FIA. Meanwhile, rival teams worked on developing their own versions of the double diffuser. In 2010, the focus shifted to the placement of the exhaust, with Red Bull introducing a lowline exhaust that blew the exhaust gases between the tire and diffuser sidewalls. Other teams quickly followed suit, but Red Bull had already gained an advantage. They worked closely with Renault to maximize this advantage, particularly with off throttle blowing.
