Model Year | 2018 | 2006 | 2006 | 2006 |
Model | A8 / S8 | Cobalt | Cobalt | Cobalt |
Trim | S8 Plus | LT | LTZ | SS |
Body | 4dr Sedan | 4dr Sedan | 4dr Sedan | 4dr Sedan |
| | | | |
Transmission and Drivetrain | |
8-speed manually-shiftable automatic | $1300 | | | |
5-speed manual | | $0 | | $0 |
4-speed automatic | | | $800 | |
AWD | $1700 | | | |
FWD | | $0 | $0 | $0 |
Accessories | |
Active noise reduction | $0 | | | |
Hands-free trunk or liftgate | $100 | | | |
Power door closers | $300 | | | |
Power trunk closer | $350 | | | |
Proximity key | $250 | | | |
Remote window/roof operation | $15 | | | |
Sunshade, rear, power | $225 | | | |
Sunshades, second row, power | $225 | | | |
Tilt steering wheel, manual | | $150 | $150 | $150 |
Tilt/telescoping steering wheel, power | $350 | | | |
Universal garage door opener | $100 | | | |
Brakes, Airbags, and Other Safety | |
4-wheel disc brakes | $150 | | | $150 |
Active or whiplash-reducing head restraints, front seats | $0 | | | |
Around view cameras | $500 | | | |
Blind spot warning system | $200 | | | |
Brake assist | $50 | | | |
Brake- or yaw-sensor-initiated collision preparation system | $0 | | | |
Collision preparation system, rear | $100 | | | |
Front side airbags | $350 | | | |
Knee airbag, driver | $75 | | | |
Knee airbag, passenger | $75 | | | |
Obstacle detection, front | $150 | | | |
Obstacle detection, rear | $250 | | | |
Rear side airbags | $300 | | | |
Rollover sensor | $50 | | | |
Stability control | $400 | | | |
Tire-pressure monitor | $75 | | | |
Traction control | $100 | | $100 | |
Wide-view front camera | $150 | | | |
Wide-view rear camera | $0 | | | |
Cargo Management | |
Air-conditioned storage compartment | $50 | | | |
Climate Control | |
Automatic climate control, front | $200 | | | |
Dual-zone climate control | $125 | | | |
Heated windshield washer nozzles | $15 | | | |
Rain-sensing wipers | $175 | | | |
Rear air vents with automatic controls | $250 | | | |
Rear dual-zone climate control | $125 | | | |
Residual heat | $50 | | | |
Variable intermittent wipers | | $75 | $75 | $75 |
Engine / Motor | |
Dual-mode exhaust, switchable | $500 | | | |
Exterior | |
Body kit | $0 | | | $0 |
Bodyside moldings | | $75 | $75 | |
Bright-finished exhaust tip(s) | $25 | | | $25 |
Laminated front side windows | $200 | | | |
Laminated rear side windows | $100 | | | |
Infotainment | |
Aux input | $50 | | | |
Bluetooth audio streaming | $25 | | | |
Bluetooth cell phone link | $100 | | | |
DVD-compatible player | $0 | | | |
Handwriting recognition | $200 | | | |
HD radio | $50 | | | |
In-vehicle Internet | $150 | | | |
Media drive | $15 | | | |
Navigation system | $600 | | | |
Surround sound | $250 | | | |
Traffic + travel information | $25 | | | |
Voice control for nav and audio | $100 | | | |
Wi-Fi hotspot | $50 | | | |
Instruments, Lights, and Mirrors | |
Analog clock | $25 | | | |
Auto-dimming driver-side mirror | $75 | | | |
Auto-dimming headlights | $200 | | | |
Auto-dimming passenger-side mirror | $75 | | | |
Auto-dimming rearview mirror | $150 | | | |
Compass | $0 | | | |
Cornering lights | $50 | | | |
Fog light, rear | $100 | | | |
Fog lights | | | $125 | $125 |
Head-up display (HUD) | $350 | | | |
Headlight washers | $50 | | | |
Heated mirrors | $25 | | | |
Illuminated visor mirror, driver | $50 | | | |
Illuminated visor mirror, passenger | $50 | | | |
Interior ambient lighting, configurable | $150 | | | |
LED headlights | $1000 | | | |
Mirror tilt-down in reverse | $25 | | | |
Power-folding mirrors | $50 | | | |
Steering-linked headlights | $150 | | | |
Turn signals on or near mirrors | $25 | | | |
Visor mirror, driver | | $10 | $10 | $10 |
Visor mirror, passenger | | $10 | $10 | $10 |
Seats and Interior Trim | |
Carbon fiber trim | $200 | | | |
Center armrest(s), front row | $75 | | $75 | |
Center armrest(s), second row | $50 | | | |
Cooled or ventilated front seats | $300 | | | |
Folding second row seats | | $300 | $300 | $300 |
Manual height adjuster, driver seat | | $50 | $50 | $50 |
Manual lumbar adjuster, driver seat | | $50 | $50 | $50 |
Massage, driver seat | $100 | | | |
Massage, passenger seat | $100 | | | |
Memory system, driver seat | $200 | | | |
Memory system, passenger seat | $150 | | | |
Power 4-way lumbar adjuster, driver seat | $150 | | | |
Power 4-way lumbar adjuster, passenger seat | $150 | | | |
Power fore-aft adjuster, driver seat | $100 | | | |
Power fore-aft adjuster, passenger seat | $100 | | | |
Power headrest height adjuster, driver seat | $50 | | | |
Power headrest height adjuster, passenger seat | $50 | | | |
Power height adjuster, driver seat | $100 | | | |
Power height adjuster, passenger seat | $100 | | | |
Power recliner, driver seat | $100 | | | |
Power recliner, passenger seat | $100 | | | |
Power seat belt height adjusters, front row | $25 | | | |
Power seatback bolsters, driver seat | $100 | | | |
Power seatback bolsters, passenger seat | $100 | | | |
Power thigh bolsters, driver seat | $100 | | | |
Power thigh bolsters, passenger seat | $100 | | | |
Power thigh support length adjuster, driver seat | $100 | | | |
Power thigh support length adjuster, passenger seat | $100 | | | |
Power tilt adjuster, driver seat | $100 | | | |
Power tilt adjuster, passenger seat | $100 | | | |
Power upper seatback recliner, driver seat | $100 | | | |
Power upper seatback recliner, passenger seat | $100 | | | |
Upholstered instrument panel | $300 | | | |
Suspension, Wheels, and Tires | |
Active steering | $1000 | | | |
Adaptive dampers - electrical | $500 | | | |
Air suspension, auto-leveling and height adjustable | $1000 | | | |
Alloy wheels | $350 | $350 | | |
Electronic systems calibration selector | $200 | | | |
Machined alloy wheels | | | $350 | |
Polished alloy wheels | | | | $350 |
Sport suspension (upgrade) | | | | $0 |
Transmission | |
Steering-wheel-mounted transmission controls | $100 | | | |
Total Value of Features | $20,570 | $1,070 | $2,170 | $1,295 |
Value of Feature Adjustments | $19,500 | $0 | $1,100 | $225 |
Value of Feature Adjustments | -18,147 | 0 | -1,035 | -211 |