How about adding the "date of purchase", so we can see if the value is in fact starting to go up.
And, new/used would be nice.
Color/Model: Sonic Blue 3door
New/Used: New - 47 miles
Options: All available options except Euro Package
Purchase Date: 03/27/04
Purchase Price: $18,500
with X-Plan pricing and $2,000 rebate (MSRP-$21,490)