Engine supplier logos on cars and firesuits

[rwHam 2]

I don't know if this would be feasible due to legal reasons, but I'd really like the option to add engine supplier logos to cars and fire suits if possible. I imagine that this isn't allowed because hired drivers within the game can't contractually sponsor another engine supplier, even if it is in a video game. If this is the case, could it be implemented in a way that it only shows up on the user controlled car and fire suit? Thanks.