2006 C6 changes:

1. A6 automatic transmission

2. Strengthened rear end

3. F55 software upgrade

4. 2 exterior colors dropped

5. 2 exterior colors added

6. New interior color

7. Upgraded interior console trim

8. Three spoke, smaller diameter steering wheel

9. MN6 park in R or walk feature eliminated

10. Steering column lock eliminated

11. Nav system plays MP3s

12. Digital/analog On Star

13. HVAC chrome trim rings

14. Passenger seat weight sensor for airbag

15. Reduced ragtop bubble at speed

16. Hidden XM antenna

17. GM badges

by ProfMoriarty 3/05/06

18. Altered steering "feel" sez GM

19. New Z51 brake pads

20. Improved convertible wind deflector mounting provision

21. DIN battery

22. (Apparently) no dead battery syndrome

23. Modified gas filler inlet

Added by ProfMoriarty 8/4/06

Changes for 2007 Corvettes

Just in from Chevrolet… 4/18/06

Exterior Color:

83U Atomic Orange Metallic Tintcoat (a bright chromatic orange), replaces Daytona Sunset Orange Metallic
GM mailed every dealer the new color selection with an actual chip of the new color. It is MUCH brighter and lighter than Daytona Sunset Orange Metallic!!!

Interior:

Two-tone Modified Seats (perforated leather seating surface) with crossed flag embroidery and contrasting stiching.
Available in 026 Red, 316 Cashmere, 846 Titanium
Available on Coupe and Convertible with 2LT or 3LT equipment packages

UK3 Steering-wheel mounted audio controls included with Bose premium audio systems (US9/U3U)

Larger glovebox storage space

UE1 OnStar now available on Z06 with 2LZ equipment group

Enhanced acoustic package reduces road noise and is included with Z06 2LZ equipment group

Bose audio enhancements

New keyless access transmitter with integrated mechanical key

CM7 Power convertible top is now included with Convertible 3LT equipment group

Cross-drilled brake rotors now included with F55 Magnetic Selective Ride Control

Per Ken Fichtner 4/18/06

http://forums.corvetteforum.com/show....php?t=1368594

Note:
A. Console Lock eliminated
B. New fob delayed, probably until 2008

Per AnotherYellow, 8/8/06

Underhood Light Deleted

5-Yr/100,000-mile powertrain warranty

Dec. 06 – Eliminated the coupe rear hatch lid pulldown handle
Per siffert

Changes from 2007 C6 to 2008 C6

Deletions
(19U) LeMans Blue Metallic exterior color
(80U) Monterey Red Metallic Tintcoat exterior color
(LS2) 6.0L V8 SFI engine
New Features
(85U) Jetstream Blue Metallic Tintcoat exterior color
(89U) Crystal Red Metallic Tintcoat exterior color (Coupe and Convertible only)
(QG6) 5-split spoke silver painted aluminum wheels (Coupe and Convertible only)
(QX1) 5-split spoke Competition Gray-painted aluminum wheels (Coupe and Convertible only)
(QG7) 5-spoke forged polished aluminum wheels (Coupe and Convertible only)
4LT Coupe equipment group with Custom Leather Wrapped Interior Package available in (245) Sienna or (425) Linen interior trim (Not available at start of production)
4LT Convertible equipment group with Custom Leather Wrapped Interior Package available in (245) Sienna or (425) Linen interior trim (Not available at start of production)
3LZ Z06 equipment group with Custom Leather Wrapped Interior Package available in (245) Sienna or (425) Linen interior trim (Not available at start of production)
(LS3) 6.2L V8 SFI engine with 430 HP and 424 lb-ft of torque (Coupe and Convertible only)
(GU2) 2.73 rear axle ratio, performance, limited-slip (Coupe and Convertible only with [MX0] automatic transmission; Included with Z51)
(NPP) Dual-mode performance exhaust, increases horsepower (+6 HP) (Coupe and Convertible only)
Changes
(U2K) XM Satellite Radio is now standard on all models
(UE1) OnStar is now standard on all models
(DD8) Auto-dimming inside rearview mirror with compass is now standard on all models
(DD0) Auto-dimming, power, heated, body-color outside mirror is now standard on all models
Improved steering feel
Improved manual shift efforts on (MN6) 6-speed manual transmission
Improved paddle shift automatic with quicker shift on (MX0) automatic transmission
New wrapped console trim plates (Cyber pattern standard, Bias pattern with 4LT or 3LZ)
Audio input jacks for external input devices now on (US8) AM/FM stereo with CD player and (US9) AM/FM stereo with 6-disc in-dash CD changer
New brushed aluminum interior accents
Bright trim around shifter and cupholders
New sill plates with metal finish
New keyless access fob with integrated key
(83U) Atomic Orange exterior color changed from Metallic Tintcoat to Premium Metallic
New lighted switch on (F55) Magnetic Selective Ride Control

J Patterson - 12/27/07