Hatchback v. Car (sedan?) too. A sedan trunk has a bit of an internal lip so small things can’t shift out, but yeah, raise that and it gets in the way. Hatchbacks would seriously throw off your aerodynamics if driven open, and there’d be nothing keeping your gear in the trunk, but they wouldn’t block sight.
Seems Fiddly for not a lot of benefit, IMO. Sorry, BeerBeer.