Four years ago we posted on the three-wheeled foam car that was going to enter the Auto X-Prize. The car was the Spira at the time, and it made it to the round-of-four in X-Prize competition. Its ...

You may have an image of washing a car in a driveway with a hose and a bucket of suds, but the best foam cannons are a much easier way to do it. Not do they take less time and water, they also ...