Technology like electronic traction control and electronic stability control also add a degree of safety when putting high-powered vehicles like these on the street.

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Toyota said it sympathised with anyone in an accident involving one of its vehicles, but said it stood behind the safety and integrity of its electronic throttle control system.

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Systems that monitor blind spots and track the alertness of drivers, and electronic stability control - which can detect and help prevent a skid - are already being introduced to many new vehicles.

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