I know a few of my observations:
- '06 has LED Taillights, '05 doesn't
- '06 Foglights are round and separated from signal light, '05 are kept together
- '06 Spoiler is bigger, '05 is flat
- '06 Headlights have a small curve on the bottom, '05 doesn't
- '06 has no color-matched running boards/carrier, '05 does (Limited Edition only)
- '06 doesn't have rear bumper reflector, '05 does
- '06 has the new front stainless steel cover, '05 doesn't
And lastly:
- '06 is slower than the '05 (j/k)