The new rollover rating system under development by the National Highway Traffic and Safety Admn. (NHTSA) might not replace the controversial static stability factor (SSF), says the agency's lead rollover researcher. Instead, the new system — which will be linked to test scores achieved during a series of dynamic test maneuvers — might integrate a vehicle's SSF, says W. Riley Garrott, chief of NHTSA's vehicle stability and control division. Calculated by halving a vehicle's track width ...

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