A friend of mine owned a Mazda dealership some time ago, and he had a four year old Infiniti Q45 that he'd bought. It was a brand new, four year old car sold by a Nissan/Infiniti dealer for a song. He drove the car for a few months then sold it on his lot as a low mileage used car, but didn't make much money, but didn't lose any either.
I asked him if he'd had any problems like that with Mazda products, and he said once in a while they'd get close to two years old on the higher priced cars like the RX-8, but enough incentive on the price and they'd go. Way back when they had the RWD Serenia, they often blew them out at a loss as they sold so slowly.
About 10 years ago, I took my C-Class in for service and my loaner was an S320SWB that was a couple years old and had about 500km on it. The dealer had an unsold car and used it as a service loaner, and then sold it used.