Bologna often ranks as one of the top cities, in terms of quality of life in Italy   Bologna is a very important railway and motorway hub in Italy.  Bologna is renowned for its culinary tradition.ologna often ranks as one of the top cities, in terms of quality of life in Italy   Bologna is a very important railway and motorway hub in Italy.
The differences surprised us! Vehicles equipped with the 2/32 minimum tire tread depth took about 100 more feet to stop and were still traveling at about 45 mph at the same distance the vehicles equipped with the 4/32 deep tires had already come to a complete stop!
As with most passenger vehicle tires, winter tires start with 11/32-inch deep tread. By the time winter tires are down to a tread depth of 6/32-inch, they have lost almost all of their capability. At 6/32nds they're just nibbling at the snow, says Rogers. They were taking great big bites when they were new..