This is just me speaking as someone who hasn't got a clue on how racing game economics works... since you're using Mercedes premium brand, wouldn't the licensing deal make it less cost effective?
Yeah generally licensing an IP will cost you a boatload of money. I know of sports games that have spent almost as much on licensing as on development...
However, this wasn't for a racing game; it a stand-alone project to be installed in the Mercedes-AMG tent at the Formula 1 -- it's just an audio sim with pedals, built for the IP holder :D