The 'Special Edition' as I understood it Cris, meant that it had option packages not typically found on standard models (though these were commonly avaible options in differing combinations) including: ASR, Rear Sunshade, Heated Seats, CD-Changer, Different Alloy wheels - nothing different performance-wise.
Does yours have any or all of those? I don't think it was anything really unique or telling inside or out (except for the wheels - which could be purchased as separate items from the dealer anyway). I think it was more a marketing ploy than anything.
This is only what I've been able to gather - we'll see if anyone else chimes in
Regards,
- Ryan