The acquisition of AMI's truck and equipment businesses will add about 14,000 tractors, trucks and trailers to Penske's portfolio.
The new NHTSA ratings focus on the likelihood of a rollover in a particular vehicle, which is a change from the safety agency's five-star rating for actual rollovers. The new method is described as a better guide in choosing the safest vehicle to buy.
Traffic deaths declined for the first time in six years, but deaths in sport utility vehicle rollovers increased.