The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.
Models in short supply often sell at or even above these prices.
Lowest Total Price: $27,500 Chevrolet Impala LT 3.9 | ||||||
Difference: $31,915 | ||||||
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Model Year | 2008 | 2008 | 2008 | 2015 | 2015 | 2015 |
Model | Impala | Impala | Impala | Boxster | Boxster | Boxster |
Trim | LT 3.9 | LTZ | SS | Base | S | GTS |
Body | 4dr Sedan | 4dr Sedan | 4dr Sedan | 2dr Convertible | 2dr Convertible | 2dr Convertible |
Base Price | $25,155 | $27,475 | $29,355 | $51,400 | $63,300 | $73,500 |
Leather seating surfaces | 1,125 | |||||
Rear spoiler | 175 | 175 | ||||
CD changer, in-dash | 295 | 295 | 295 | 570 | 570 | 570 |
Convenience Package | 240 | 900 | 900 | 900 | ||
Power sport seats | 2,320 | 2,320 | ||||
Metallic paint (extra cost) | 710 | 710 | 710 | |||
Audio controls on steering wheel | 615 | 615 | 165 | |||
Satellite radio | 670 | 670 | 670 | |||
Sport suspension (upgrade) | 1,235 | 1,235 | 0 | |||
Bright-finished exhaust tip(s) | 650 | |||||
Leather seating surfaces | 934 | |||||
Rear spoiler | 145 | 145 | ||||
CD changer, in-dash | 245 | 245 | 245 | 0 | 0 | 0 |
Convenience Package | 199 | 0 | 0 | 0 | ||
Power sport seats | 0 | 0 | ||||
Metallic paint (extra cost) | 0 | 0 | 0 | |||
Audio controls on steering wheel | 0 | 0 | 0 | |||
Satellite radio | 0 | 0 | 0 | |||
Sport suspension (upgrade) | 0 | 0 | 0 | |||
Bright-finished exhaust tip(s) | 0 | |||||
Options (change) | 1,595 | 470 | 535 | 7,020 | 7,020 | 3,665 |
Options (change) | 1,324 | 390 | 444 | 0 | 0 | 0 |
Destination | 750 | 750 | 750 | 995 | 995 | 995 |
Total Price | $27,500 | $28,695 | $30,640 | $59,415 | $71,315 | $78,160 |
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Lowest Adjusted Price: Chevrolet Impala LT 3.9 | ||||||
Lowest Adjusted Invoice: Porsche Boxster GTS | ||||||
TrueDelta Adjusted Price Difference: $26,760 | ||||||
TrueDelta Adjusted Invoice Difference: $24,963 | ||||||
Model Year | 2008 | 2008 | 2008 | 2015 | 2015 | 2015 |
Model | Impala | Impala | Impala | Boxster | Boxster | Boxster |
Trim | LT 3.9 | LTZ | SS | Base | S | GTS |
Body | 4dr Sedan | 4dr Sedan | 4dr Sedan | 2dr Convertible | 2dr Convertible | 2dr Convertible |
Engine | 233hp V6 | 233hp V6 | 303hp V8 | 265hp H6 | 315hp H6 | 330hp H6 |
Transmission | A4 | A4 | A4 | M6 | M6 | M6 |
Drivetrain | FWD | FWD | FWD | RWD | RWD | RWD |
EPA Fuel Economy (city/highway) | / MPG | / MPG | / MPG | / MPG | / MPG | / MPG |
Audio (watts, speakers) | ?, 6 | ?, 8 | ?, 6 | 50, 4 | 185, 7 | 185, 7 |
Tire (rear if not all the same) | 225/55-17 | 235/50-18 | 235/50-18 | 235/45-18 | 235/40-19 | 235/35-20 |
Total Price | $27,500 | $28,695 | $30,640 | $59,415 | $71,315 | $78,160 |
Adjustments for Features | 0 | -375 | -400 | -5,155 | -5,905 | -7,205 |
Feature-Adjusted Total Price | $27,500 | $28,320 | $30,240 | $54,260 | $65,410 | $70,955 |
Cost Above Minimum | $0 | $820 | $2,740 | $0 | $11,150 | $16,695 |
Model Year | 2008 | 2008 | 2008 | 2015 | 2015 | 2015 |
Model | Impala | Impala | Impala | Boxster | Boxster | Boxster |
Trim | LT 3.9 | LTZ | SS | Base | S | GTS |
Body | 4dr Sedan | 4dr Sedan | 4dr Sedan | 2dr Convertible | 2dr Convertible | 2dr Convertible |
Transmission and Drivetrain | ||||||
4-speed automatic | $800 | $800 | $800 | |||
6-speed manual | $150 | $150 | $150 | |||
FWD | $0 | $0 | $0 | |||
RWD | $0 | $0 | $0 | |||
Accessories | ||||||
Power rear side windows | $200 | $200 | $200 | |||
Remote start | $150 | $150 | $150 | |||
Tilt steering wheel, manual | $150 | $150 | $150 | |||
Tilt/telescoping steering wheel, manual | $250 | |||||
Tilt/telescoping steering wheel, power | $350 | $350 | ||||
Universal garage door opener | $100 | $100 | $100 | $100 | $100 | |
Wind blocker, small | $100 | $100 | $100 | |||
Brakes, Airbags, and Other Safety | ||||||
Brake assist | $50 | $50 | $50 | |||
Front side airbags | $350 | $350 | $350 | |||
Knee airbag, driver | $75 | $75 | $75 | |||
Knee airbag, passenger | $75 | $75 | $75 | |||
Roll bar | $200 | $200 | $200 | |||
Temporary spare tire | $150 | $150 | $150 | |||
Cargo Management | ||||||
Storage compartment under second row seats | $50 | $50 | $50 | |||
Climate Control | ||||||
Automatic air recirculation | $100 | $100 | $100 | |||
Automatic climate control, front | $200 | $200 | $200 | |||
Heated windshield washer nozzles | $15 | $15 | $15 | |||
Residual heat | $50 | $50 | $50 | |||
Water-repellent front-door glass | $15 | $15 | $15 | |||
Drivetrain | ||||||
Electronically-variable engine mounts (performance-oriented) | $500 | |||||
Engine / Motor | ||||||
Automatic start / stop | $150 | $150 | $150 | |||
Dual-mode exhaust, switchable | $500 | |||||
Mid-engine configuration | $0 | $0 | $0 | |||
Regenerative braking | $0 | $0 | $0 | |||
Exterior | ||||||
Black exterior trim (optional) | $0 | |||||
Bright-finished exhaust tip(s) | $25 | $25 | $25 | $25 | ||
Painted brake calipers (optional) | $0 | $0 | ||||
Power convertible top | $4000 | $4000 | $4000 | |||
Rear spoiler | $200 | $200 | $200 | |||
Retractable rear spoiler | $400 | $400 | $400 | |||
Infotainment | ||||||
Bluetooth audio streaming | $25 | $25 | $25 | |||
Bluetooth cell phone link | $100 | $100 | $100 | |||
Telematics service, such as OnStar | $200 | $200 | $200 | |||
Instruments, Lights, and Mirrors | ||||||
Auto-dimming rearview mirror | $150 | $150 | ||||
Chronometer | $100 | |||||
Compass | $0 | $0 | $0 | |||
Fog light, rear | $100 | $100 | $100 | |||
Fog lights | $125 | $125 | $125 | |||
Headlight washers | $50 | |||||
Heated mirrors | $25 | $25 | $25 | $25 | $25 | |
Steering-linked headlights | $150 | |||||
Trip computer | $150 | $150 | $150 | |||
Xenon HID headlights | $500 | $500 | ||||
Seats and Interior Trim | ||||||
Center armrest(s), second row | $50 | $50 | $50 | |||
Door sill trim plates | $100 | $100 | $100 | |||
Folding second row seats | $300 | $300 | $300 | |||
Leather door panel trim | $250 | |||||
Manual height adjuster, driver seat | $50 | |||||
Manual height adjuster, passenger seat | $50 | |||||
Manual lumbar adjuster, driver seat | $50 | $50 | $50 | |||
Memory system, driver seat | $200 | $200 | ||||
Metal pedals | $75 | $75 | $75 | |||
No leather in second row | $-300 | $-300 | $-300 | |||
Power 4-way lumbar adjuster, driver seat | $150 | $150 | ||||
Power 4-way lumbar adjuster, passenger seat | $150 | $150 | ||||
Power fore-aft adjuster, driver seat | $100 | $100 | $100 | $100 | $100 | |
Power fore-aft adjuster, passenger seat | $100 | $100 | $100 | $100 | $100 | |
Power height adjuster, driver seat | $100 | $100 | $100 | $100 | $100 | |
Power height adjuster, passenger seat | $100 | $100 | $100 | $100 | $100 | |
Power recliner, driver seat | $100 | $100 | $100 | $100 | $100 | |
Power recliner, passenger seat | $100 | $100 | $100 | |||
Power thigh support length adjuster, driver seat | $100 | $100 | ||||
Power thigh support length adjuster, passenger seat | $100 | $100 | ||||
Power tilt adjuster, driver seat | $100 | $100 | $100 | $100 | $100 | |
Power tilt adjuster, passenger seat | $100 | $100 | $100 | $100 | $100 | |
Synthetic suede door panel trim | $250 | |||||
Synthetic suede inserts in leather seating surfaces | $0 | |||||
Upholstered instrument panel, leather | $1000 | |||||
Suspension, Wheels, and Tires | ||||||
Alloy wheels | $350 | $350 | $350 | |||
Electronic systems calibration selector | $200 | |||||
Machined alloy wheels | $350 | $350 | $350 | |||
Sport suspension (upgrade) | $0 | $0 | $0 | $0 | $0 | |
Transmission | ||||||
Launch control | $100 | |||||
Total Value of Features | $3,375 | $3,750 | $3,775 | $8,530 | $9,280 | $10,580 |
Value of Feature Adjustments | $0 | $375 | $400 | $5,155 | $5,905 | $7,205 |
Value of Feature Adjustments | 0 | -354 | -378 | -86 | -82 | -92 |
Model Year | 2008 | 2015 |
Model | Impala | Boxster |
Body | 4dr Sedan | 2dr Convertible |
Wheelbase | 110.5 in | 97.4 in |
Length | 200.4 in | 172.2 in |
Width | 72.9 in | 70.9 in |
Height | 58.7 in | 50.5 in |
Curb Weight | 3,675 lb. | 2,889 lb. |
Fuel Capacity | 17.5 gal. | 16.9 gal. |
Row 1 Headroom | 39.4 in | 38.6 in |
Row 1 Shoulder Room | 58.7 in | 51.7 in |
Row 1 Hip Room | 56.4 in | 53.4 in |
Row 1 Legroom | 42.3 in | 42.6 in |
Row 2 Headroom | 37.8 in | 0.0 in |
Row 2 Shoulder Room | 58.6 in | 0.0 in |
Row 2 Hip Room | 57.2 in | 0.0 in |
Row 2 Legroom | 37.6 in | 0.0 in |
Cargo Volume | 18.6 ft3 | 9.9 ft3 |
Leather seating surfaces | ||
Feature | Value | Requested? |
Leather seating surfaces | 900 | Yes |
Heated front seats | 200 | Yes |
Power fore-aft adjuster, passenger seat | 100 | Yes |
Power height adjuster, passenger seat | 100 | Yes |
Power tilt adjuster, passenger seat | 100 | Yes |
Total Requested | 1400 | 100% |
Total Not Requested | 0 | 0% |
Convenience Package | ||
Feature | Value | Requested? |
Heated mirrors | 25 | Yes |
Universal garage door opener | 100 | Yes |
Auto-dimming rearview mirror | 150 | No |
Total Requested | 125 | 45% |
Total Not Requested | 150 | 55% |
Convenience Package | ||
Feature | Value | Requested? |
Automatic climate control, front | 200 | No |
Heated front seats | 200 | Yes |
Dual-zone climate control | 125 | Yes |
Residual heat | 50 | No |
Automatic air recirculation | 100 | No |
Total Requested | 325 | 48% |
Total Not Requested | 350 | 52% |
Power sport seats | ||
Feature | Value | Requested? |
Tilt/telescoping steering wheel, power | 100 | No |
Power fore-aft adjuster, driver seat | 100 | Yes |
Power height adjuster, driver seat | 50 | Yes |
Power tilt adjuster, driver seat | 100 | Yes |
Power 4-way lumbar adjuster, driver seat | 150 | No |
Power thigh support adjuster, driver seat | 100 | No |
Power fore-aft adjuster, passenger seat | 100 | Yes |
Power 4-way lumbar adjuster, passenger seat | 150 | No |
Power thigh support adjuster, passenger seat | 100 | No |
Memory system, driver seat | 200 | No |
Power height adjuster, passenger seat | 50 | Yes |
Power tilt adjuster, passenger seat | 100 | Yes |
Total Requested | 500 | 38% |
Total Not Requested | 800 | 62% |
Convenience Package | ||
Feature | Value | Requested? |
Automatic climate control, front | 200 | No |
Heated front seats | 200 | Yes |
Dual-zone climate control | 125 | Yes |
Residual heat | 50 | No |
Automatic air recirculation | 100 | No |
Total Requested | 325 | 48% |
Total Not Requested | 350 | 52% |
Power sport seats | ||
Feature | Value | Requested? |
Tilt/telescoping steering wheel, power | 100 | No |
Power fore-aft adjuster, driver seat | 100 | Yes |
Power height adjuster, driver seat | 50 | Yes |
Power tilt adjuster, driver seat | 100 | Yes |
Power 4-way lumbar adjuster, driver seat | 150 | No |
Power thigh support adjuster, driver seat | 100 | No |
Power fore-aft adjuster, passenger seat | 100 | Yes |
Power 4-way lumbar adjuster, passenger seat | 150 | No |
Power thigh support adjuster, passenger seat | 100 | No |
Memory system, driver seat | 200 | No |
Power height adjuster, passenger seat | 50 | Yes |
Power tilt adjuster, passenger seat | 100 | Yes |
Total Requested | 500 | 38% |
Total Not Requested | 800 | 62% |
Convenience Package | ||
Feature | Value | Requested? |
Automatic climate control, front | 200 | No |
Heated front seats | 200 | Yes |
Dual-zone climate control | 125 | Yes |
Residual heat | 50 | No |
Automatic air recirculation | 100 | No |
Total Requested | 325 | 48% |
Total Not Requested | 350 | 52% |