Before she went to 5 Nordman and did not know the troubles. But as soon as I switched to 7, I immediately saw a difference for the worse. Does not hold turns, goes to demolition. Where I went turns at a speed of 60 to 5 Nordmann - this one goes for demolition already at 50 km / h. This winter I bought again 5 Nordman. The only plus is the extended warranty for 7 Nordman, for 5 it is not =\