I can't believe no one's made a thread about this, but what does the person in the cockpit of these machines actually go through when the car flips over? Surely they don't remain sitting 'upright'; being able to only see the ground from under your vehicle would be disorienting and nauseating as hell.
I thought for a time that maybe the interior of the cockpit was similar to a toy I had ages ago. The driver is in a cockpit with a weight on the bottom that rotates perpendicular to the vehicle. This would always orient the driver vertically in relation to gravity, except maybe in high speed turns.
Then I realized that this would cause issues when it came to driving upside down or sideways. The driver would be, for all intents and purposes, again stuck with a ground only view or worse yet, staring at part of the vehicle. Something more complex would need to be in place to orient the driver with respect to both gravity and the surface said driver is driving on.
I figure that perhaps the vehicle has proximity sensors in/on the 'top' and 'bottom', or perhaps pressure sensors near the axles, which interact with gyroscopes in the cockpit so the driver is always oriented with respect to the surface s/he is driving on. When the vehicle catches air, the vehicle takes into account which side is arguably the 'top' in relation to gravity and orients the driver so s/he is facing the proper direction when s/he touches down.
As for when the vehicle bounces around, a 'lethal centrifuge' as I remember someone calling it at some point somewhere in this forum, no doubt an onboard computer spins the cockpit along the aforementioned axis perpendicular to the vehicle in a way that cancels out the shock as best it can, while also keeping the driver from getting dizzy/nauseated.
I'd like to hear others' theories as to just what happens in the cockpit to prevent 'filling the vase' as I'm told the astronauts say.
Of course this is mostly theory, but perhaps the best theory, or theories, could be woven into GRIP Lore by the time the final version comes...? With an obvious hat tip to those who came up with said 'best theories', maybe defunct companies with names akin to the forum user who posted it, or perhaps the CEOs of said companies would be named similarly...?