The Dolomites are without doubt one of the great driving areas of the Alps. There is a very high density of mountain passes all within the same area. Many of them interconnect without the need for the boring main road in between. The Dolomite Mountains have a characteristic flat topped, vertical monolith appearance, which is unique within the Alps.
Therein lies the bad news. Come a nice sunny weekend day, the roads are packed with tourists from northern Europe taking in the scenery at a gentle 15 mph. At the height of the Holiday season, this goes for weekdays as well. Your best bet is to stay locally and get up early, or alternatively risk the weather in June.
Extreme caution has to be taken when the road is wet in summer. The small mountain passes are extremely slippery. Something we noticed quite a few times!!