In ERC, the tyre manufacturer logos appear on the cars because the tyre companies pay a big fee to Eurosport.

Which I'm sure does impact the price - and also reduces the ability for the individual competitors to do deals with tyre companies. Why would they do deals - they get the brand recognition anyway!

Those that don't pay the fee to Eurosport don't even get recognised on the leaderboards on the TV coverage - there's just a blank space.