formula one car performance is heavily dependent on electronics
the aerodynamic restrictions introduced in 2005 were meant to reduce downforce by about 30 however most teams were able to successfully reduce this to a mere 5 to 10 downforce loss
4 litres in 2006 launch control and traction control in 1994 and again in 2004 and 2008 alongside engine braking after electronic driver aids were reintroduced in 2001