Top-of-the line racers are all about running economy. Here's what that means—and how high-tech sports labs measure it.

The Fast-R Nitro Elite 3 is built for speed—but is it the best choice for all kinds of runners? I laced them up to find out.

The performance version of a forgotten little sporty coupe, the Ford Racing Puma is a fun driver's car that has become dirt ...

The seller claims this car to be one of the few that were imported into the U.S., although it lacks some U.S.-mandated safety ...

It is the lightest and most expensive marathon running shoe in history and, at its launch in the shadow of Nelson’s Column in ...