I mean, for your car maker in the game.
You could ask a game company or an indie game team (e.g: Camshaft Software) to make a game for you, pay $1000 (AUD/USD/GBP/SGD) a week to sponsor businesses, fleet deal with your nation when it hosts [SPECIAL SPORTS EVENT NAME HERE].
Great suggestion, bumping this because I second it, and was going to post something along these lines as well.
Like a cool car ad, informative, comparative, obviously designing the ads would be ridiculous, but even something as small as a marketing budget for the car company, and within that possibly, have space for television advertising, other forms, does this sound like an idea could/will be implemented in the game?