Does a red object look like it moves faster than a white one? People often say red cars seem quicker on the road. You can test this idea with two paper airplanes. You fold one white airplane and one red airplane the same way. One person throws each plane past an observer standing 15 feet away. You time the flight with a stopwatch. Then you ask the observer to guess how long the flight took. After several trials you compare the guesses to the real times and check whether color changed the estimates.