250km/h on the 400.

Dude you think this is fast and the furious? You hit a certain speed and then your floor pan falls out or you spin out?

For the most part, that’s the least of your worries when you’re driving on a public road at that speed. You should be more worried about someone changing into your lane going 100km/h.

And ratings don’t mean much. For example, some tires will say that 50psi is the max pressure but you can push it to 70 or even more and still be fine. However, you don’t know what could happen if you left it at that pressure for a prolonged period of time.