starter car with new drivers or seniors in mind

Why not build a car with safety in mind for the ones we love the most our teens and seniors............for both the sensor that doesn't beep but actually slows or stops the vehicle if it is about to cross or be in the line of danger of another car....for the senior swivel seats and hydraulic doors to make it easier to get out of the vehicle,,,also a seat that is higher with grips in the middle of the door and on the front to hold and pull themselves out.....and reinforce the structure to prevent cave in during a rollover.....also would like a new mustang or truck if idea is used or maybe a nice bonus