Minor changes to F1 cars for 2013 prior to ' tsunami of regulatory change ' in 2014 . New softer compounds are most significant changes in 2013 says Red Bull 's Adrian Newey . New softer compounds designed to be faster but will degrade more quickly . Pirelli say that this year 's hard compound tire ( with new orange coloring on the tire sidewall ) is `` roughly equivalent to last year 's medium compound '' with the `` performance gap between the different compounds now in excess of 0.5 seconds per lap . '' Competition between Ferrari , Red Bull and McLaren expected to tighter in F1 .
Minor changes to F1 cars for 2013 prior to ' tsunami of regulatory change ' in 2014 . New softer compounds are most significant changes in 2013 says Red Bull 's Adrian Newey . New softer compounds designed to be faster but will degrade more quickly . Competition between Ferrari , Red Bull and McLaren expected to tighter in F1 .