My car has g-force sensors. I know from experience, it can only handle 1 lateral G before it starts to slide (in a 4-door sedan wrighing around 3500 lbs). Thats with Z-rated tires. What F1 and Indy cars can pull off is absolutely amazing. Most of what they can do is purely because of the aerodynamics and the insane downforce they produce. I remember hearing somewhere that an Indy car produces enough downforce at speed, it'd be able to drive upside down and stick to the inverted road.