PARIS, France — Track and field gets off to a hot start on Friday, and catching as much attention as the races is the vibrant purple color of the track at the Stade de France. The two-toned ...

After a test run with Aston Martin, Adrian Newey of Red Bull is aiming to perfect the track-only hypercar with the RB17.

In an indictment unsealed on Tuesday, documents show a red coffee mug filled with thousands in cash in an attempt to bribe an Antioch city councilmember for a favorable vote on a stalled housing ...

Brazil chose a blue track for the 2016 Rio Olympics, the first time a red track hadn't been used at the Summer Games. Why is the Olympic track purple?

Brazil chose a blue track for the 2016 Rio Olympics, the first time a red track hadn't been used at the Summer Games. Why is the Olympic track purple?

Brazil chose a blue track for the 2016 Rio Olympics, the first time a red track hadn't been used at the Summer Games. Why is the Olympic track purple?

Brazil chose a blue track for the 2016 Rio Olympics, the first time a red track hadn't been used at the Summer Games. Why is the Olympic track purple?

Brazil chose a blue track for the 2016 Rio Olympics, the first time a red track hadn't been used at the Summer Games. Why is the Olympic track purple?

PARIS, France — Track and field gets off to a hot start on Friday, and catching as much attention as the races is the vibrant purple color of the track at the Stade de France. The two-toned purple ...

Brazil chose a blue track for the 2016 Rio Olympics, the first time a red track hadn't been used at the Summer Games. Why is the Olympic track purple?