GameZone.com: 1nsane 
[8/10] Reviewed by Rita Courtney. "The only real problem I saw with the game is the load time." Also includes screen shots.
http://www.gamezone.com/gzreviews/r18122.htmInsane Garage 
Contains utilities, vehicles, and a tutorial on making cars for download.
http://www.insanegarage.com/
insane heat 
Offers 1nsane information plus downloads and user forum.
http://www.insaneheat.com
GameSpot 
[7.6/10] Reviewed by: Giancarlo Varanini. "Overall, though it has a few problems and takes some getting used to, 1nsane can be a very enjoyable off-road racing experience." Also includes a preview, downloads, and hints.
http://www.gamespot.com/pc/driving/1nsane/
GamePro.com: 1nsane 
Reviewed by: Human Tornado. "Overall, Insane is a decent deal for thirty bucks." Also includes screen shots.
http://www.gamepro.com/computer/pc/games/reviews/11586.shtml
Game Industry News 
Reviewed by Jevon Jenkins, score: 4 out of 5.
http://www.gameindustry.com/review/item.asp?id=384
IGN.com: 1nsane 
[7.1/10] Reviewed by Anthony Chau. "And while 1nsane might be fun when you initially fire it up, this game is anything but "1nsane." Also includes screen shots.
http://pc.ign.com/articles/164/164391p1.html
GamersHell.com 
[8.666/10] "A Definite winner, Online gaming is a huge success on this one..." Also includes screenshots.
http://www.gamershell.com/pc/insane/review.html