Air is used to inflated car tyres but cars can be equipped with nitrogeon inflated tyres but this is usually only beneficial to race cars
Nitrogen.
nitrogen
Nitrogen
It's nitrogen.
Nitrogen and oxygen = Air
Helium gas is pumped into a balloon.
Usually it's just ordinary air that gets pumped in there. Some use Nitrogen, but the benefits are marginal.
I think it is Nitrogen. The normal air mixture pumped into regular road cars is not efficient at high speeds and will lose pressure easily. If that happens there could be catastrophic consequence at high speed. That is why they use nitrogen If you pump nitrogen into the tires of your regular road car, you need not check tire pressure for 3 months.
I assume you mean tires - not tyers... So some race cars use Nitrogen for the properties that it has. It is noncombustible, has larger molecules and is absolutely dry.
Airless tires are tires which are not pumped up with air in the traditional way. Vehicles such as ride-on lawnmowers and golf buggies use airless tires.
Maybe, tires?
oxygen