I have seen a TV advertisment where a car manufactured by Renault (HQ in FRance) is said to include tyre pressure control. I think the model name is Laguna. Neither this is my car nor I have any relation with Renault. I don't know whether it works fine or not, but I should like to know what solution they have implemented.

And why not to complement this option with an automatic inflating/deflating system to keep the pressure at the rigt level all the time?.

Alfredo.