That's close to my procedure but last time I did car shopping two dealers made me come in and after an hour of paperwork it turned out that they didn't keep their end of the bargain but added 1000-2000 to the price. I walked out but still wasted a lot of time. Only the third dealer stuck to his promise afte a little amount of negotiating.

Buying a car and medical billing are the sleaziest businesses I have ever dealt with.