BMW 6-Series BMW 6-Series 2008 Cadillac STS Cadillac STS 2010
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BMW 6-Series vs. Cadillac STS Price Comparison (MSRP)

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.

BMW 6-Series vs. Cadillac STS Invoice Comparison

Lowest Total Price: $70,605

Cadillac STS V8 Performance   
Difference: $18,215

Lowest Total Invoice: $66,703

Cadillac STS V8 Performance   
Difference: $15,087

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082010
Model6-SeriesSTS
Trim650iV8 Performance
Body2dr Coupe4dr Sedan
Base Price $76,600 $68,785
Base Invoice $70,650 $65,002
Cold Weather Package 750  
Premium Sound Group 2,000  
Proximity key 1,000  
Wood trim 0  
Auto-dimming headlights 250  
Head-up display (HUD) 1,200  
Lane departure warning 500  
Active steering 1,400 995
Satellite radio - one year subscription 595  
Adaptive cruise control, all-speed 2,400  
Cold Weather Package 685  
Premium Sound Group 1,820  
Proximity key 910  
Wood trim 0  
Auto-dimming headlights 230  
Head-up display (HUD) 1,010  
Lane departure warning 455  
Active steering 1,230 876
Satellite radio - one year subscription 540  
Adaptive cruise control, all-speed 2,135  
Options (change) 10,095 995
Options (change) 9,015 876
Destination 825 825
Gas Tax 1,300 0
Total Price $88,820 $70,605
Total Invoice $81,790 $66,703

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

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Request free, no-obligation BMW 6-Series dealer quotes or Cadillac STS dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: BMW 6-Series vs. Cadillac STS

Lowest Adjusted Price and Invoice: Cadillac STS V8 Performance
TrueDelta Adjusted Price Difference: $19,450
TrueDelta Adjusted Invoice Difference: $16,254
Model Year20082010
Model6-SeriesSTS
Trim650iV8 Performance
Body2dr Coupe4dr Sedan
Engine360hp V8320hp V8
TransmissionM6T6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)315, 13300, 15
Tire (rear if not all the same)245/45-18235/50-18
Total Price$88,820$70,605
Adjustments for Features0-1,235
Feature-Adjusted Total Price$88,820$69,370
Total Invoice$81,790$66,703
Adjustments for Features0-1,167
Feature-Adjusted Total Invoice$81,790$65,536

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Features Comparison: BMW 6-Series vs. Cadillac STS

Model Year20082010
Model6-SeriesSTS
Trim650iV8 Performance
Body2dr Coupe4dr Sedan
Transmission and Drivetrain 
6-speed manual$150 
6-speed manually-shiftable automatic $1100
RWD$0$0
Accessories 
Adaptive cruise control $600
Adaptive cruise control, all-speed$850 
Power rear side windows $200
Remote start $150
Remote window/roof operation$15 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Blind spot warning system $200
Knee airbag, driver$75 
Knee airbag, passenger$75 
Obstacle detection, front$150 
Temporary spare tire $150
Tires, run-flat$150 
Cargo Management 
Cargo mat$40 
Cargo net $40
Ski sack$50 
Climate Control 
Rain-sensing wipers$175 
Rear air vents with manual controls $150
Residual heat$50 
Variable intermittent wipers $75
Drivetrain 
Limited-slip rear differential $300
Exterior 
Laminated front side windows $200
Rear spoiler $200
Infotainment 
Aux input$50 
DVD-compatible player $0
iPod integration$100 
MP3-compatible player$50 
Rear seat audio controls $25
Satellite radio $200
Satellite radio - one year subscription$250 
Telematics service, such as OnStar$200 
Telematics service, such as OnStar, with navigation $225
Traffic information$25 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
Interior ambient lighting$150 
Mirror tilt-down in reverse$25 
Power-folding mirrors$50 
Steering-linked headlights$150 
Turn signals on or near mirrors $25
Seats and Interior Trim 
Center armrest(s), second row $50
Cooled or ventilated front seats $300
Heated second row seats $200
Leather door panel trim$250 
Leather-wrapped steering wheel$150 
Wood/leather-wrapped steering wheel $150
Suspension, Wheels, and Tires 
Active stabilizer bars$500 
Adaptive dampers - electrical $500
Alloy wheels$350 
Polished alloy wheels $350
Sport suspension (upgrade) $0
Total Value of Features$4,155$5,390
Value of Feature Adjustments$0$1,235
Value of Feature Adjustments0-1,167

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See a complete comparison of BMW 6-Series vs. Cadillac STS features.

Specifications Comparison: BMW 6-Series vs. Cadillac STS

Model Year20082010
Model6-SeriesSTS
Body2dr Coupe4dr Sedan
Wheelbase109.4 in116.4 in
Length190.2 in196.7 in
Width73.0 in72.6 in
Height54.1 in57.6 in
Curb Weight3,815 lb.3,974 lb.
Fuel Capacity18.5 gal.17.0 gal.
Row 1 Headroom37.6 in38.7 in
Row 1 Shoulder Room56.4 in58.6 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom42.0 in42.6 in
Row 2 Headroom35.6 in37.9 in
Row 2 Shoulder Room49.4 in57.4 in
Row 2 Hip Room0.0 in55.6 in
Row 2 Legroom28.8 in38.3 in
Cargo Volume13.0 ft313.8 ft3

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See a complete comparison of BMW 6-Series vs. Cadillac STS specs.

Option Package Details
BMW 6-Series 650i

Cold Weather Package
FeatureValueRequested?
Heated front seats200Yes
Rear seat pass-through100Yes
Heated steering wheel100Yes
Ski sack50No
Total Requested40089%
Total Not Requested5011%
Premium Sound Group
FeatureValueRequested?
CD changer, in-dash200Yes
Surround sound250Yes
iPod integration100No
Harman/Kardon, 315W, 13 speakers (with subwoofer)350No
Total Requested45050%
Total Not Requested45050%

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