Brewcrewmike’s deal sounds in the realm of reality. Even at $3k off MSRP they had room to give him more for his trade if they really wanted the car gone as a few people have managed to get close to $5k off a GT2. It’s always hard to say as usually there are other factors complicating the deals (dealer adds, warranties, trades, different incentive amounts, etc). Add in his $2k down, ~$6500 rebate, and the $5k trade and you’re at $16500 off MSRP for the capital cost. Origination fee of $650 and you’re at $36,500 total with a residual of $27,000... those are going to be pretty low payments (let’s say <$300) before state taxes are figured in. $392 doesn’t sound crazy.
The dealer probably just wanted to move the car.