Your vehicle's weight and tyres have the greatest impact on traction. Hence, the answers are weight and tyres. Read below about traction.
What is a traction?
Traction is the action of drawing or pulling something over a surface, especially a road or track. It is also the grip of a tyre on a road or a wheel on a rail.
Therefore, the correct answers are weight and tyres.
learn more about traction: https://brainly.com/question/17370563
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