To what must you pay particular attention when driving with winter tyres?

When driving with winter tyres, you must pay attention to the maximum permissible speed indicated for those specific tyres. Winter tyres often have lower speed ratings than summer tyres, typically shown with a letter on the tyre’s sidewall (like “T” for up to 190 km/h). Driving faster than the tyre's approved maximum speed can be dangerous, as the tyres are not designed to safely handle higher speeds. Always check the speed symbol and make sure your driving speed matches or stays below this limit. The other answers about not exceeding 80 km/h or driving as with snow chains do not apply universally to all winter tyres.