[RedDevil]

One of my friends knows a rally driver who does occasionally race on road stretches that have speed bumps.
A short tap on the brake makes the nose dive a bit, then jump up slightly.
By timing the tap right you can hit the bump while the nose rebounds, that makes a big difference.
Of course if you time it wrong you'd do worse.

By using the brake tap rally drivers hardly lose any speed on the bumps while their suspension is much stiffer than what normal road car use. Without this trick they would jump or damage the suspension.

I have to negotiate several speed bumps in my neighborhood every time I go out.
It works... but the speed limit is set so low and the bumps are relatively car friendly so I don't really need to use this trick.

I don't encourage speeding, just help conquer speed bumps that would otherwise force you to go slower than what is legal and safe for the conditions.