You probably couldn't do much in this area now, but longer term I'd like to see an Elise site with lots of technical information. This could include things like: Detailed specs that you don't commonly find in product literature (spring rates, swaybar diameters, alignment specs, weights of parts, etc.). Part numbers for commonly used parts. Torque specs. CEL codes. Detailed modification/repair instructions with pictures.
Pretty pictures won't bring me to a site more than once, and a color selector is only useful before I buy the car. What brings me back repeatedly is the information I need as a car owner.