As with the adjustable suspension, being able to inflate and deflate our tires on the fly would offer multiple advantages for a variety of drivers. The most obvious bonus of this feature is that it saves you making the trip to the gas station to fill your tires up and will save you gas by making sure your tires are always properly filled. For trucks, the feature allows drivers to quickly adjust tire inflation for different terrains and conditions. To paraphrase por-shuh: if the Hummer can get it why can't the rest of [cars]? [Photo: Central Tire Inflation] Back to Ten Features We Want In Our Next Car.