You'll probably find that it goes either way depending on the car/brand in question. In Porsche's case, I'd wager that Hasbro came to them as they've used an older Porsche for the movie not a current one (given that this film is set in the '90s there's not really any flexibility there). We also know that in the past Takara have tried to approach them for licensing and been rejected, so my guess is that a rather lucrative film and merchandising deal helped win Porsche over as opposed to "let us do this one Binaltech." I realise what was said above about nothing being guaranteed but I will still be very surprised if we don't see a sudden influx of Porsche toys over the next 12 months or so across various lines.