For me a sport needs to have competitive aspect to it. Driving a 200 mile loop stopping at gas stations, restaurants and hotels is not competitive. Snowmobiling becomes a sport when honest competition is added (snow-x, radar runs, drag races, hill climb, etc). Otherwise it is a recreation.
Not bashing, just my opinion. FYI - when I do a 200 mile loop, its a sport. First guy back gets all the beer and wins, lol.