Four vehicles with advanced options earned perfect scores in new front-crash prevention ratings released on May 29 by the Insurance Institute for Highway Safety.
The vehicles that earned perfect scores include: the 2014 BMW X5 and 5 Series, the 2014 Mercedes-Benz E-Class, and the 2015 Hyundai Genesis.
The 2014 Buick Regal, Cadillac XTS, Cadillac CTS, and Chevrolet Impala earned the highest rating of "Superior" when equipped with GM's forward collision warning and autobrake system, according to the IIHS.
The vehicles join the Cadillac ATS and SRX, which were included in the first round of tests back in late 2013.
The only other Detroit vehicle to get rated in this latest round of testing is the 2014 Dodge Durango. The new Durango earned an "Advanced" rating, according to the IIHS.
The institute tested advanced technologies created to help drivers avoid front-end crashes by adding systems that automatically brake the vehicles.
The IIHS launched its new rating system for front-crash prevention back in 2013.
"We know that this technology is helping drivers avoid crashes," said David Zuby, IIHS executive vice president and chief research officer, in a statement. "The advantage of autobrake is that even in cases where a crash can't be avoided entirely, the system will reduce speed. Reducing the speed reduces the amount of damage that occurs to both the striking and struck cars and reduces injuries to people in those cars."
Of the 24 cars and SUVs tested in the latest round, the IIHS said 21 earned advanced or higher ratings.
Approximately 20 percent of all 2014 models come available with a front-crash prevention system or twice as many as in 2012, according to the IIHS.
The front-crash prevention system includes automatic braking.
Forward collision warning is offered as an option on nearly 40 percent of 2014 models.
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