SPEEDWAY, Ind. | While nobody knows how a taller rear spoiler will affect the racing during Sunday's Crown Royal 400 at Indianapolis Motor Speedway, one thing was learned on the first lap of ...

The styling and height of a vehicle, the size of the grille, shape of the front bumper and headlights, the design of the roof, rear window and trunk, and other factors all play significant parts ...

The C8 Corvette Rear Window Spoiler from ACS Composite covers the lower edge of your Vette's rear window for better looks. Here's a video with the details.

Rear-spoiler height (Cup) In 2016, the Cup series ran a rough draft of the 2017 aero package at both Michigan races and at Kentucky Speedway. That package featured a rear spoiler that was 2.5-inches ...

NASCAR announced rule changes for 2014 on Tuesday, including an increased rear spoiler height and no front ride height measurements pre and post-race. The sanctioning body held a test last week to ...

Manthey kit ditches Porsche 911 GT3 RS rear window for spoiler. The visibility-obscuring aero aid ain't just for show either—at speed, it creates up to 2,205 lbs (1,000 kg) of down-force.

Check your speed any time you see a Ford Explorer in the rear-view mirror, because Ford’s newest update to the Police Interceptor Utility makes it look even more like the midsize SUV than ever ...