My recomendations are 2 sims that have been tried and tested, as well
as updated like mad by online community. Both offer plenty of online
league racing and dont require a Cable Modem to take part in the
online racing.
Grand Prix Legends
NAscar Heat (I hate nascar but....)
Both of these games have very low system requirements, but have the
advantage of large community support.
GPL has now more than 100 tracks available (comes with 11)
GPL has incredible physics which still serve as the benchmark for all
others. GPL has a huge on-line racing community and very liitle
problems handling a field of 20 online driverrrs at the start of a
race. The graphics updates are absolutely incredible for GPL. Tracks
come out almost on a weekly basis.
I paid $ 15 for my copy of GPL.
Best place for starting a search for GPL add ons is:
http://gplpp.com/
also try the ultimate GPL Links page:
http://www.noctua.f2s.com/links.html
NAscar Heat. Also low system requirements.
Great online racing also.
A growing number of modifications which allow creators to alter the
physics. DTM is my favorite. Hasbro (original maker) has patched the
game to allow complete mods to do what the programer wants.
MODS include.... DTM (Mercedes road racing). Off Road Heat.
Saleen Heat. IRL HEat. CART HEAT. Go-Kart Heat coming soon.
GT40 heat. LeMAns heat.
I paid $10 for my copy of NHeat and now have about 10 extra racing
sims for free.
A good start for researching NHeat mods is:
http://www.sim-editing.com/
So, for $25 you can be happy for a long time. These games do benefit
from buying a driving wheel / pedals. Both support Force Feedback.
I choose not to use FF (to distracting) You might pay more for NHeat.
E-bay is a good place to find GPL. or post a request here in RAS to
find out if anyone else has sources.
All of these games do require about 2 weeks of driving before you will
see yourself getting around a track in one piece / no dirt. But once
you have the technique, you will be hooked. I race in two GPL Leagues,
and one DTM League. uses up about 1-2hrs a night of practice to be
competitive for GPL as my league is very fast.