This is if you don’t want to play the haggling game. But I feel like most sought after cars don’t really have much haggle room anyway since they are so in demand, might as well save a few hours of your life and just walk in with the Costco quote the dealer has agreed to.
I avoid trading in and all that nonsense, that’s when dealers get to start playing games. I just prefer to run the car into the ground, give it away to family, or if I want a luxury car just lease it and return it.