Here's a list of ones that I've seen, some of them are good.
Project Torque
Drift City
Aeronauts (some missions are)
TalesRunner (if you don't mind fairytales)
Project Powder
Trackmania Nations Forever (United version if you want to buy it)
Upshift Strikeracer (cars with guns...rockets and mines too)
Air Rivals (not really racing but good if you like high speeds)
Top Speed (currently in Closed Beta)
There are more (somewhere), but these are some of the currently appealing ones.
There are a lot of MMO racing games, yes. Here are some I've heard of:ProjectTorque (not really family friendly)Dark Wind: War on WheelsUse google to find more.
yes
DiveIn mmorpg
Runescape, Dofus.
alicia online
yes Fire emblem radiant dawn
One might find the top online MMORPG games in specialized sites such as mmobomb, mmorpg, mmohuts, gamigo, and many more gaming sites that offer MMORPG games.
theres runes scape sherwood its awesome
sherwood dungion
MMORPG
there is a game called istaria but its a downloadable
You can play as a vulcan in the MMORPG Star Trek Online