a new thread.
Sport implies a reasonable amount of physical activity. Driving a race
car is fatiguing, but it's sort of in a grey area to call it a sport.
Sport's are like soccer, tennis, basketball, ...
The other stuff is called a hobby or an activity or a job.
Probably the details of the graphics of the cars, tracks, and city,
plus whatever is involved with the storyline for the NFS games that
have them. The city based NFS games have fairly large 3d areas filled
with all sorts of structures, and objects, some of which are animated.
The issue with that is only a small percentage of real life racers would
consider using any sim oriented game as a tool. Some formula one teams
use simulators, but they make their own. With 100 million dollar or more
yearly budgets, they can afford to make expensive simulators.
Anyway, it's too soon to tell how iRacing is going to work out. The rate
of development seems slow as they've only added one or two cars and tracks
since the public release. They've invested a lot of money into a project
that obviously is never going to get the millions of players that the
top games get (for example the Sims or World of Warcraft).
By my guestimate, they need about 40,000 to 50,000 players to make a
profit, but at the current 6,000 or so that seems like a long ways
off if it ever happens. Currently, there's just not a lot of content,
and a lot of what's there requires seperate fees in addition to the
rental cost.