We now look back on the air-cooled era of 911 with love, but why do we love this primitive engine technology so much?

If you drive a car with an internal combustion engine, which is most modern vehicles that run on fossil fuels, then your engine requires a precise combination of fuel and oxygen to function properly.

Peter Dearman's rusty, 25-year-old Vauxhall Nova runs only on liquid air. LONDON, March 17, 2013 — -- If you're looking for the car of the future, look no further than Peter Dearman's rusty, ...

Something to bear in mind, next time you see a used German luxury sports sedan with a too-good-to-be-true price tag.

Air filters help keep your engine clean, and they should be replaced frequently to keep your vehicle running smoothly. The air entering your intake needs to be filtered to prevent dirt and other ...