2005 Ford Explorer Sport Trac Concept

The prototype's two-tone interior and flashy brightwork may be inviting, but what will matter more to those buying into

The one feature most potential buyers will be most interested in is Ford's standard Roll Stability Control (RSC). (Photo: Ford Motor Company of Canada)

Ford's updated SUT will be standard Roll Stability Control (RSC). During an auto show preview held in Dearborn in early December, Ford reiterated its plan to include RSC, which first debuted on the Ford-owned Volvo XC90 crossover SUV, as standard equipment in all new light trucks, full-size vans (2006 MY) and sport utility vehicles, which should equal about 500,000 vehicles per year.

What does it do? Basically RSC gives extra assistance to the driver in maintaining control of the vehicle during extreme accident avoidance maneuvers, when a rollover is most likely to occur. Both GM and Chrysler Group

RSC continuously calculates if the vehicle may be approaching a situation where rollover is probable, and then takes measures to help prevent it from happening. (Photo: Ford Motor Company of Canada)

have made similar announcements, but compared to conventional stability control RSC is the most technically advanced system going. In fact, it's so unique a total of 80 patents are pending and the automaker believes there is enough of a differentiation when compared to competing yaw stability control systems that Ford will be able to license it to rival brands wanting to keep up, which it plans to do.

How does it work? Rather than simply reacting to tire slippage, RSC continuously calculates if the vehicle may be approaching a situation where rollover is probable, and then takes measures to help prevent it from happening.