OK, I've obsessively corrected 2 errors my RPO list above.
George is right, we have sister ships of different colors, more or less. He does not have CA smog and I do. The only other differences:
- I have mystery R9N and he has equally mysterious R9Z instead
- I have mystery SLM and he has SLL instead, which decodes to "Sold Orders," whatever than means.
- Mine came with VK3 "License Plate front - Front Mounting Pkg" (which seems to have never been installed, surely because the car was immediately shipped to Arizona.)

I asked myself' "Is CA smog cert good or bad?" DOH! All depends on if it needs to go to CA, I guess? (Stuck in Ohio for now.) Anyone know if CA smog has different parts and or impacts performance?

Thanks, everyone, for the insights!!!

 

Here’s the RPO codes , I posted it for the other SS with the GM wheels

The RPO list for all 2009 HHR’s , hope it helps, and a tip of the hat to ChevyMgr

2009 Chevrolet HHR | HHR (VIN A) Service Manual | Document ID: 2108369
________________________________________
RPO Code List
RPO Description
ANJ Window Tinted - Export Compliant, Non-Deep
ARD Restraint Provisions - D Ring, Rear Seat
ASA Restraint System - Seat,Inflatable, Driver and Passenger Front, Low Risk Deployment-Infant only suppression
ASF Restraint Roof Side, Left and Right, Inflatable
ATY Seat Rear - Not Installed (Seat, Belts, Labels, MTG Hardware)
AXP Vehicle Type - Multi-Purpose Passenger Vehicle
AXS Vehicle Type - Panel Van
AA5 Window - Rear Quarter-Delete
AE4 Seat - Front Bucket, Sport
AJ6 Adjuster - Seat, Power, 6-way, Vert, Driver
AK5 Restraint System - Seat, Inflatable, Driver and Passenger Front
AL0 Sensor Indicator - Inflatable Restraint, Front Passenger/Child Presence Detector
AP3 Lock Control, Entry - Remote, Keyless Entry, Start (Do not use after 2009 M.Y.)
AP9 Net - Convenience
AR9 Seat - Front Bucket, Deluxe
AT8 Restraint Provisions - Child, Rear Seat, Rear Facing
AV9 Net - Cargo, Movable
BAG Parts Package - Export
BVE Steps, Runningboard - Side
BG2 Covering - Floor Mat, Rear
B36 Covering - Floor Mat, Luggage Compartment
B57 Ornamentation - Exterior, Deluxe
CF5 Roof - Sun, Glass, Sliding, Electric
CV3 Country - Mexico
CW4 Country - Caribbean (Antigua, Antille, Bahama, Barbados, Bermudacayman, Dominican, Haiti, Jamaica, Nassau, S.M. Trinid)
CW9 Country - Miscellaneous
CX2 Country - Colombia
CZ1 Country - Central America (Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama)
C2Y GVW Rating - 4,240 lbs
C67 HVAC System - Air Conditioner Front, Electronic Controls
DCP Processing - Directions and Connections Service Package
DD8 Mirror Inside Rearview - Light Sensitive
DG7 Mirror Outside - Left and Right , Remote Control, Electric, Color
DT4 Ashtray - Cigarette Lighter
D7E Tray - Load Floor, Storage
D22 Mirror Outside - Left and Right, Remote Control, Electric
D48 Mirror Outside - Left and Right, Remote Control, Electric, Color
D81 Spoiler - Rear, Aero Wing
EXP Export
E09 Equipment Additional - Europe
E12 Equipment Additional - Japan
FE1 Suspension System - Soft Ride
FE3 Suspension System - Sport
FE5 Suspension System - Ride, Handling, Performance
FE9 Certification - Emission, Federal
FQ7 Ratio - Transaxle Final Drive 4.05
FR7 Ratio - Transaxle Final Drive 3.95
FR9 Ratio - Transaxle Final Driver 3.29
FX2 Ratio - Transaxle Final Drive 3.91
FY1 Ratio - Transaxle Final Drive 3.63
G63 Provisions - Luggage Carrier, Roof
G85 Axle - Limited Slip, FWD
IPB Trim - Interior Design (PB)
IPC Trim - Interior Design (PC)
IP2 Trim - Interior Design (P2)
JL4 Control - Active Brake
JL9 Brake System - Power, Front and Rear Disc, Antilock, Front and Rear Wheel
JM4 Brake System - Power, Front Disc, Rear Drum, Cast Iron, Antilock, Front and Rear Wheel
J56 Brake System - Power, Front and Rear Disc, Antilock, Front and Rear Wheel, Heavy Duty
IPB Trim - Interior Design (PB)
IP2 Trim - Interior Design (P2)
KA1 Heater - Seat, Front
K05 Heater Engine - Block
LE8 Engine - Flexible Fuel, (GAS/ALC), 4 Cyl, 2.2L, MFI, VVT, ALUM, GM
LE9 Engine - Flexible Fuel, (GAS/ALC), 4 Cyl, 2.4L, MFI, DOHC, VVT, HO
LNF Engine - Gas, 4 Cyl, 2.0L, DI, Alum, DOHC, TURBO, GM
MM5 Merchandised Trans - Manual 5 Speed Provisions
MN5 Transmission - Automatic 4 Speed, HMD, 4T45-E
MU3 Transmission - Manual 5 Speed, SAAB, 76.5 mm, 3.38 1st, 0.70 5th
MX0 Merchandised Trans - Automatic Provisions, O/D
M86 Transmission - Manual 5 Speed, GETRAG, 5T45-E, M, F23, 75 mm, 3.58 1st, 2.02 2nd, 1.35 3rd, 0.98 4th, 0.69 5th
NE1 Certification - Emission, Geographically Restricted Registration for Vehicles up to 14,000 lbs, GVW (Use 2003 Mdl Yr)
NP5 Steering Wheel - Leather Wrapped
NT7 Emission System - Federal, Tier 2
NU1 Emission System - California, Lev 2
NU5 Emission System - California, Bin 4
NW9 Traction Control - Electronic
NZ6 Wheel - 16 X 6.5, Steel, High Vent
N24 Steering Wheel - Plastic, 3 Spokes (Do not use after 2009 M.Y.)
N85 Wheel - 17 X 6.5, Aluminum
PY1 Wheel - 16 X 6.5, Aluminum, Chrome
PZ4 Wheel - 18 X 7.5 Aluminum, Polished
P23 Wheel - 17 X 6.5, Aluminum, Chrome
QBV Tire All - P215/50R17-90S BW ST TL AL2
QB5 Wheel - 16 X 6.5, Steel
QDB Tire All - P215/55R16-91S BW R/PE ST TL AL2
QDJ Tire All - P215/55R16-91H BW R/PE ST TL AL3
QO1 Tire All - P225/45R18-91W AL3 BW
R13 Appearance Package - Chrome Exterior
SAL Plant Code - Ramos Arizpe, Mexico
TBD Restraint - Roof Side, Left and Right, Inflatable-Delete (ASD)
T37 Lamp - Fog, Deluxe
T62 Lamp System - Daytime Running - Delete
T96 Lamp - Front Fog, FMVSS (Do not use after 09 major global programs, use T3U and VCS Family)
UAF Display - Multiple Information Display (MID)
UPF Wireless Interface - Short Range, Voice Recorder
UUI Radio - AM/FM Stereo, Seek/Scan, CD, Auto Tone, Clock, ETR, MP3, RDS, USB Port
UE0 Communication System - Vehicle, G.P.S. - Not Installed
UE1 Communication System - Vehicle, G.P.S. 1
UJ6 Tire Pressure Indicator - Low Tire Pressure
UK1 Frequencies - Japanese
UL2 Frequencies - European
UQ3 Speaker System - Enhanced Audio
US8 Radio - AM/FM Stereo, Seek/Scan, CD, Auto Tone, Clock, ETR, MP3, RDS
UW5 Speaker System - 6, Base
U1C Radio - AM/FM Stereo, Seek/Scan, CD, Clock, ETR
U2K Digital Audio System - S-Band
U19 Speedometer - Instrument, Kilo and Miles, Kilo Odometer
VBX Language Label - Arabic
VPM Modification - Noise Control, Mexico
VC5 Label - Shipping, Except US, US possessions or Japan
VK3 License Plate Front - Front Mounting Pkg
VT7 Owners Manual - English Language
VY7 Knob - Transmission Control Lever, Leather
V73 Vehicle Statement - Delete
V78 Vehicle Statement - Delete
YF5 Certification - Emission, California
Z49 Country - Canada
1LS Package - LS Option 1
1LT Package - LT Option 1
2LT Package - LT Option 2
1SS Package - Option 17
14B Trim Combination - Cloth, Gray (B) (97)
19B Trim Combination - Cloth, Ebony (B) (00)
32B Trim Combination - Cloth, Medium Dark Cashmere (B) (04)
13C Trim Combination - Cloth, Light Gray (C)
19C Trim Combination - Cloth, Ebony (C) (00)
47C Trim Combination - Cloth, Red (C) (Holdens)
17U Primary Color - Exterior, Switchblade Silver Met (09)
37U Primary Color - Exterior, Imperial Blue (07)
38U Primary Color - Mystique Blue Flash Met (08)
41U Primary Color - Exterior, Black (02)
50U Primary Color - Exterior, Olympic White (02)
51U Primary Color - Exterior, Gold Mist Met (06)
61U Primary Color - Exterior, Aqua Bluer Met (09)
71U Primary Color - Exterior, Lunar Quartz Met (06)
74U Primary Color - Exterior, Victory Red (02)
75U Primary Color - Exterior, Techno Gray (07)
79U Primary Color - Exterior, Merlot Jewel Met (08)
89U Primary Color - Exterior, Crystal Claret Tintcoat (08)
9B7 Mirror Auxiliary - Outside Spot, Convex
141 Interior Trim - Medium Dark Gray (I) (97)
142 Trim Combination - Leather, Gray (2) (97)
191 Interior Trim - Ebony (I) (00)
192 Trim Combination - Leather, Ebony (2) (00)
321 Interior Trim - Medium Dark Cashmere (04)
322 Trim Combination - Leather, Medium Dark Cashmere (2) (04)
__________________

 

Regarding the SLL code on mine.
Mine was a special order/build . I didn't buy my SS from dealer stock. That may be what the SLL code means. Not sure.

Edit: After a little research, this is what I came up with.
SLM. Is the code for regular production fleet orders sent to the dealers.
SLL. Is the code for "presold" customer special order builds

 

Huh. Cool, thanks.