What must you note when driving in other European countries in winter?

The combination of options 1, 2, and 3 is important because each element addresses a critical aspect of winter driving regulations that can ensure safety and compliance in different European countries.

1. Minimum tread depth of tyres is crucial because it affects traction. For winter conditions, a minimum tread depth is specified to help prevent skidding and maintain proper handling on icy or snowy roads.

2. The obligation to fit your vehicle with winter tyres is a common regulation in several countries during the winter months. Winter tyres are specifically designed to perform better in low temperatures and snow, providing enhanced grip.

3. The obligation to carry snow chains is also a requirement in many regions that experience severe winter weather. Chains can provide extra traction when roads are heavily snowed or icy, ensuring that drivers can maintain control of their vehicles.

Understanding and complying with all three aspects is vital for driving safely in winter conditions and avoiding any legal penalties. Always consider the specific regulations that apply to the country you are driving in, as they can vary significantly.