In China's booming sport utility vehicle (SUV) market, many automakers are selling cars without electronic stability control (ESC) as a standard feature, potentially putting lives at risk from rollover accidents.
SUV sales topped 6 million in China last year, a jump of more than 50 percent in an overall market that grew less than 5 percent, as drivers sought more room for their money. As China's economy weakens, price-conscious drivers have shifted from foreign brands to cheaper domestic SUVs.
To make the sale, many automakers and dealers only offer ESC as an extra, more expensive, option.
SUVs have a higher center of gravity putting them more at risk of rolling over. ESC counteracts that, quickly reorienting a skidding vehicle to stop it from rolling. A study published by Annals of Advances in Automotive Medicine found vehicles with ESC are two-thirds less likely to flip.
There is no legal requirement in China for ESC, and German parts maker Bosch says 43 percent of SUVs do not come equipped with this technology.