I don't believe that's the problem. Popular US market cars like the Accord have a few things in common: 1. They have a sunroof/moonroof, which makes the ceiling

I don't believe that's the problem. Popular US market cars like the Accord have a few things in common: 1. They have a sunroof/moonroof, which makes the ceiling lower. 2. The larger sedans tend to have very slanted windshields to help with gas mileage. 3. The seats, annoyingly, tend to have a high minimum height "for a more commanding seating position".