IIHS Adds Fourth Test Category: Roof Strength
Tiny as they are, Smart Fortwos perform quite well in IIHS crash tests thanks to its built in safety cage.
The Insurance Institute for Highway Safety (IIHS) is an association of auto insurance companies who track how well vehicles perform in a crash. These tests go far in helping member companies decide how much to charge customers, which means automakers know that a low score could result in higher insurance premiums. High premiums can keep shoppers away from purchasing a particular model, thus the importance of performing well.
Thousands Killed Annually In Rollovers
Up until recently the IIHS tested cars for front, side and rear impact, but they didn’t test these cars for roof impact which happens as a result of vehicle roll overs. Roof strength is critical because if your roof collapses, you and your passengers could be seriously injured or killed. About 10,000 people are killed annually due to rollovers, which is about one-fourth of all vehicle deaths in the US.
To roll out its new test, the IIHS decided to test the smallest cars on the road – a group of micro and mini-cars that may soon become dominate on our roads especially if gas prices begin to surge once again. The Smart Fortwo, Chevy Aveo, Honda Fit, Toyota Yaris and Hyundai Accent were each tested with some surprising results – the Fortwo’s roof was the strongest while the Aveo was the weakest, the latter model given a “marginal” rating by the IIHS.
Smart Fortwo Cage
IIHS research has shown that car roofs have gotten strong lately, which is good news for consumers. In the case of the Smart Fortwo, which is enveloped in a safety cage, roof strength is superior to most cars on the road.
“We anticipate that our roof strength test will drive improved rollover crash protection the same way our frontal offset and side tests have led to better occupant protection in these kinds of crashes,” says Institute president Adrian Lund. “Small cars should have an easier time with the roof strength test,” Lund explains. “Their light weight means their roofs don’t have to work as hard to keep the structure around the occupants intact in a rollover.”
More Tests Soon
Likely, we’ll hear some pretty bad news as the IIHS test expands to incorporate more body styles with SUVs expected to perform poorly. Minivans, crossovers and any other larger vehicle will probably have a difficult time getting a score above acceptable with perhaps marginal being the common score among some segments.
Source: IIHS
See Also — IIHS Recognizes Ford Safety Among This Year’s Top Picks
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