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Which dimension is the track of a vehicle?

  • A.The overall width
  • B.The distance between the outer edges of the two tyres on the same axle, measured at the widest point of each
  • C.The distance between the wheel centres on the same axle
  • D.The distance between the front and the rear axles, which determines the interior space available to the occupants

Answer: C

Track is measured between the centres of the tyre contact patches on one axle and governs the resistance to roll and the lateral load transfer during cornering. A wider track reduces load transfer for a given centre of gravity height and improves cornering. Overall width includes the body and mirrors and is a different dimension entirely. Framing the question as which quantity the change acts upon makes the answer follow without calculation.

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