>>28461911
The later, it is specially impossible to make a car with body pannels that thin and defined because all cars have to have a giga-reinforced chassis and rollcage hidden underneath which makes cars look fatter, on top of a lot more shit and nanies having to be fit underneath and in the engine bay.
Airbags are one of the key suspects here since they take up far more space in the sides, they make the pillars grow thicker and the doors chunkier.