The window leaked and I had to take it back to the dealership. They replaced it with a new seal.
My seatbelt had to be fixed at the dealership.
The glove box is too small to allow many items to be placed inside.
The seats are very thin and uncomfortable.
The doors tend to swing back and not latch (catch) in place which can cause injury to your leg.
Not enough leg space in the back seat.
Trunk does not have a large enough opening for bigger items to fit although the trunk is roomy.
I do not think you give the car a bad rating just because of the leg room, no room in the glove box and a small trunk. You had a choice NOT to buy this car.
It is a sportscar, not a mini-van.
I think you needed to take some time while shopping for a new vehicle. It's a mustang, not a grocery getter.