2009 rule changes

3 changes recorded for 2009. 2009 standings · results · ← 2008 · 2010 →

Double diffuser ruled legal

Brawn, Toyota and Williams exploited a gap in the diffuser rules; the design was ruled legal in April 2009 and banned for 2011. Source

changed Aerodynamics

Wide front wing, tall narrow rear wing, slick tyres return, KERS introduced

The biggest aerodynamic overhaul in decades, aimed at closer racing, plus an optional kinetic energy recovery system and an 18,000 rpm limit with eight engines per season. Source

banned Testing and cost

In-season testing banned

Track testing during the season was banned, with limited exceptions in later years. Source