According to test results released by the National Highway Traffic Safety Administration, the BMW Z4 roadster got a five-star rating in the test, which measures rollover propensity through a mathematical formula, not a moving test, the story said.
The Ford Explorer Sport Trac sport utility vehicle and a rear-wheel drive version of the Jeep Liberty performed worst, earning two-star rollover ratings on NHTSA's five-star scale.
A four-wheel drive version of the Jeep Liberty got three stars in NHTSA's ratings, the only vehicle tested in which different versions received different rollover ratings.
Among other vehicles tested:
The Subaru Outback wagon and the compact Saturn Ion got four stars, while the Subaru Forester earned three stars.
The Honda Pilot and both the front-wheel drive and four-wheel drive versions of the Nissan Murano were the only SUVs earning four-star ratings.
SUVs earning three-star ratings included the BMW X5; the Honda Element; the Kia Sorento; the Mercedes-Benz ML350; the Mitsubishi Outlander; and the Toyota 4Runner. NHTSA tested front-wheel and four-wheel drive versions of the Element, the Sorento, the Outlander and the 4Runner. Only four-wheel drive versions of the X5 and the ML350 were tested.
The Ford Explorer Sport Trac sport utility vehicle and a rear-wheel drive version of the Jeep Liberty performed worst, earning two-star rollover ratings on NHTSA's five-star scale.
A four-wheel drive version of the Jeep Liberty got three stars in NHTSA's ratings, the only vehicle tested in which different versions received different rollover ratings.
Among other vehicles tested:
The Subaru Outback wagon and the compact Saturn Ion got four stars, while the Subaru Forester earned three stars.
The Honda Pilot and both the front-wheel drive and four-wheel drive versions of the Nissan Murano were the only SUVs earning four-star ratings.
SUVs earning three-star ratings included the BMW X5; the Honda Element; the Kia Sorento; the Mercedes-Benz ML350; the Mitsubishi Outlander; and the Toyota 4Runner. NHTSA tested front-wheel and four-wheel drive versions of the Element, the Sorento, the Outlander and the 4Runner. Only four-wheel drive versions of the X5 and the ML350 were tested.