Instead, a new study suggests you'll take just as long as an auto stopped up to two car lengths behind the lead driver. (sciencemag.org)
When I drive I can't read street signs until I get about one car length away from them. (apieceoftoastblog.com)
With traffic moving at speed, it tends to leave a couple of car lengths between you and the car ahead, which other drivers will likely grab. (cnet.com)