The question I asked wasn't regarding the best finance. That's fairly easy to determine from the APR. What I queried was the belief that a dealer gets a 'kickback' from a finance company, and whether some of this could be passed on in a lower price to change than if using cash.
dealers arent interested in cash these days, they get money off the finance houses for sending business there way. when i was looking for my fr last year a performance specialist near were i live opened my eyes as to how much main dealers make.. i would shop around, on a new car id expect 3% flat rate to be achievable