The game i have played for years is 1nsane it has online compatibility and a large comunity to this day.
The game is now freeware and there is about 500 addon cars and thousands of skins
you are allowed up to 128 skins per vehicle there are also several hundred maps.
[URL=ftp://downloads.codemasters.com/digitaldownload/1NSANE.exe]Click here for 1nsane[/URL]
After you install the game you should install this patch 2 which is here
[URL=http://quickiespatch.com/quickbits/InsanePatch2.exe]patch 2[/URL]
and If you wish to play online via gamespy you need the randoms mod which generates random tracks to race on
[URL=http://www.quickiespatch.com/stuff/TRM_Randoms_Beta_setup.zip]Randoms mod[/URL]

I hope to see you soon
Mod sites=
[URL=http://www.insaneheat.com/SMF/]insane heat biggest online community for 1nsane[/URL]
[URL=http://www.insaneheat.com/NewIHDB/IHVehicleslist.asp?order=Date]Other mods and things[/URL]
[URL=http://1nsane.rogue4x4.com]rouge 4x4[/URL] you can get good crawlers and the blaZeR2

[URL=http://img238.imageshack.us/my.php?image=blazer1hm6.jpg][color=red][color=red;][/color][/color][/URL]
[URL=http://img291.imageshack.us/my.php?image=blazer2gt4.jpg][color=red;][/color][/URL]
[URL=http://img204.imageshack.us/my.php?image=blazer3gm4.jpg][color=red;][/color][/URL]

enjoy guys
If you have t/s hop on and we can also help you there
70.85.198.242:8842