In Finnish driving safety and emergency procedures, what is the statutory minimum tread depth for summer tyres on passenger cars in Finland?
Answer and explanation
Correct answer: B. At least 1.6 mm across the principal tread grooves
- Step 1: The statutory minimum tread depth for summer tyres is 1.6 mm, though replacing them at 3.0–4.0 mm is recommended to prevent aquaplaning. Answer: At least 1.6 mm across the principal tread grooves. Why not the others: 3.0 mm is the winter tyre minimum requirement.
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