Federal safety officials say automakers are sharply improving the rollover risks for sport utility vehicles.
The National Highway Traffic Safety Administration released new rollover results for 2006 vehicles today. It gave 39 SUVs a four out of five stars in the rollover rankings. Last year two dozen SUVs notched that level. In 2001 just one model earned it.
No SUV received a top five-star rating. The Pontiac G6 and the Buick Lucerne were the only passenger cars to receive five stars.
The administration notes that seven in ten new SUVs come equipped with electronic stability control, which sharply cuts the risk of flipping.
The Nissan XTerra had the highest chance of rollover of all the new SUVs tested. The Chevrolet HHR was the best performer.