[Mysticp]

General Information:

http://www.carbibles.com

Probably the broadest and most in depth read

http://auto.howstuffworks.com/

offers alot of information in less technical (but easier to read) format

http://en.wikipedia.org/

offers a 'tip of the ice berg' description about how things work.

Saxo Specific:

http://www.gmcmotorsport.co.uk

Lots of very good information specifically tailored to saxos

Repair & Maintenance:

http://ca.autos.yahoo.com/maintenance.php - Submitted by King_Fisher

Get answers to common auto repair questions. Also get car maintenance tips to keep your car running smoothly for thousands of miles.

If there are any other links you know of that could be included here, feel free to PM me them