NHTSA Introduce A New Rating System. The National Highway Traffic Safety Administration introduced a new rating system Monday that predicts a vehicle’s chance of rolling over in a severe crash and lets consumers compare a vehicle with other similar vehicles.
A five-star rating is the highest, meaning the vehicle’s chance of rolling over is 10 percent or less. A two-star rating means a vehicle’s chance of rolling over is between 30 and 40 percent. Here are the best and worst performers among 2004 vehicles tested so far.
Category Star Rating System Percent Chance of Rollover
Best: Mazda RX-8
Worst: Subaru Outback wagon Four stars 15.5 percent
Best: Chevrolet Silverado 4 x 2 Four stars
Worst: Toyota Tacoma 4 x 4 Three stars 28.3 percent
Sport Utility Vehicles
Best: Chrysler Pacifica 4×4 Four stars
Worst: Ford Explorer Sport Trac 4×2
Two stars 34.8 percent
Best: Nissan Quest Four stars 12.1 percent
Worst: Toyota Sienna Four stars 15.9 percent