[Retric]

High end cars can pull up to 1g lateral forces and many cars can pull up to 1g breaking on a good road surface. Relatively low top speed just means you don't accelerate very long. I have hit weightlessness over a hill at high speeds followed by 1.x g on the other side, so 0.5 g does not seem bad.

Remember 1g * 1 second is only ~22mph.

[toomanybeersies]

For sure, my car is a pile of junk and can hit 1g braking.

The problem is when it's sustained. That's why people get sick on roller coasters and when doing aerobatics (extreme examples, I know).