As rare as these trucks are, there are even rarer versions out there. If your into collectors items, Look for either a Viper Club of America aka VCA (Electric Blue w/white stripes) or Commemorative Edition (white w/blue stripes). I've seen pictures of an '06 in Bright Silver Metallic paint that was for sale. It may be the only one like it from the factory.
Here's what Wiki shows as Special Editions:
"Special editions
Dodge released several limited editions of the Ram SRT alongside the standard regular cab and Quad cab versions.
- VCA Edition - 50 produced, released at the 2004 Daytona Motor Speedway Race in February. Its paint scheme was white rally stripes on Electric Blue. Engine was also signed by Wolfgang Bernhard, Chrysler Group's former Chief Operating Officer.
- Yellow Fever - 500 produced, painted in Solar Yellow exterior paint and black "fanged" stripe on top of hood, comes with two-tone interior which features a yellow center stack bezel, yellow door spears, yellow stitching on steering wheel, seats and Regular Cab manual transmission shifter and yellow embroidering on the SRT-10 floor mats. Also comes with special Yellow Fever Edition badging and a serialized Yellow Fever dash plaque.
- Commemorative Edition - in 2005 - 200 produced, features Bright White exterior paint with Electric Blue stripes. Interior enhancements include blue stitching on the seats, shift boot, shift knob and steering wheel. Floor mats are embroidered in matching stitching with the SRT-10 logo. In addition, the Commemorative Edition includes standard polished wheels, brushed aluminum scuff plates, and hard tonneau cover.
- Night Runner - 400 produced, painted in Brilliant Black exterior paint, comes with Dark Nickel Pearl finish 22-inch (560 mm) wheels, black chrome grill inserts, unique Night Runner Badging, a black center stack and center console bezel overlay, and a serialized Night Runner dash plaque. Only available as a 2006 regular cab or 2006 Quad cab."