Just a quick comment on something Fonnybone mentioned. Consistency. It's important, especially in long races. In endu, ATC GPs etc instead of thinking "oh f*** there are faster ppl than me so I gotta drive every lap flatout" I try to settle into a rhythm as soon as possible. It allows me to relax a bit instead of being on the absolute edge the entire race. In the long run it means I make less mistakes, finish the race with minimal damage and delays and enjoy it. Of course there are crunch times when you do need to push as hard as you can, but not necessarily the entire race.
Also, in relation to that, not pushing the max every single lap is easier on the tyres. Being smooth and not sliding about excessively can make or break a race. With RWDs once you start oversteering in corners and overheating your tyres, it's not going to get any easier so it's best to avoid that situation. It's easier to drive with slightly cool tyres than ones that have overheated quite a lot (possibly with few combo specific exceptions where overheated R2s are faster in short races than cooler R3s).
Also, in relation to that, not pushing the max every single lap is easier on the tyres. Being smooth and not sliding about excessively can make or break a race. With RWDs once you start oversteering in corners and overheating your tyres, it's not going to get any easier so it's best to avoid that situation. It's easier to drive with slightly cool tyres than ones that have overheated quite a lot (possibly with few combo specific exceptions where overheated R2s are faster in short races than cooler R3s).