Cadillac STS Cadillac STS 2009 BMW Z4 BMW Z4 2016

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Cadillac STS vs. BMW Z4 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.

Cadillac STS vs. BMW Z4 Invoice Comparison

Lowest Total Price: $74,030

BMW Z4 sDrive35is   
Difference: $9,105

Lowest Total Invoice: $68,799

BMW Z4 sDrive35is   
Difference: $7,607

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092016
ModelSTSZ4
TrimSTS-VsDrive35is
Body4dr Sedan2dr Hardtop conv.
Base Price $80,160 $66,350
Base Invoice $73,448 $61,720
Engine-block heater 100 75
Cold Weather Package   700
Technology Package   2,250
Metallic paint (extra cost)   550
Wood trim   0
Cargo net   60
Obstacle detection, rear   750
Upholstered instrument panel, leather   1,350
CD changer, remote   600
Satellite radio - one year subscription   350
Engine-block heater 83 66
Cold Weather Package   635
Technology Package   2,050
Metallic paint (extra cost)   500
Wood trim   0
Cargo net   53
Obstacle detection, rear   685
Upholstered instrument panel, leather   1,230
CD changer, remote   545
Satellite radio - one year subscription   320
Options (change) 100 6,685
Options (change) 83 6,084
Destination 775 995
Gas Tax 2,100 0
Total Price $83,135 $74,030
Total Invoice $76,406 $68,799

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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 Cadillac STS dealer quotes or BMW Z4 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. BMW Z4

Lowest Adjusted Price and Invoice: BMW Z4 sDrive35is
TrueDelta Adjusted Price Difference: $15,040
TrueDelta Adjusted Invoice Difference: $13,123
Model Year20092016
ModelSTSZ4
TrimSTS-VsDrive35is
Body4dr Sedan2dr Hardtop conv.
Engine469hp V8335hp I6
TransmissionT6S7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)13/19 MPG17/24 MPG
Audio (watts, speakers)300, 15650, 16
Tire (rear if not all the same)255/45-18225/40-18
Total Price$83,135$74,030
Adjustments for Features0-5,935
Feature-Adjusted Total Price$83,135$68,095
Total Invoice$76,406$68,799
Adjustments for Features0-5,516
Feature-Adjusted Total Invoice$76,406$63,283

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Features Comparison: Cadillac STS vs. BMW Z4

Model Year20092016
ModelSTSZ4
TrimSTS-VsDrive35is
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed automated manual $1200
RWD$0$0
Accessories 
Power rear side windows$200 
Remote app $25
Remote start$150 
Tilt/telescoping steering wheel, manual $250
Tilt/telescoping steering wheel, power$350 
Brakes, Airbags, and Other Safety 
Blind spot warning system$200 
Knee airbag, driver $75
Knee airbag, passenger $75
Lane departure warning$200 
Obstacle detection, front $150
Roll bar $200
Side curtain airbags$350 
Cargo Management 
Ski sack $50
Climate Control 
Rear air vents with manual controls$150 
Drivetrain 
Limited-slip rear differential$300 
Engine / Motor 
Automatic start / stop $150
Raised top speed limiter $0
Regenerative braking $0
Exterior 
Laminated front side windows$200 
Power retractable hardtop $6750
Rear spoiler$200 
Infotainment 
App support $0
Aux input $50
Bluetooth audio streaming $25
CD changer, in-dash$325 
CD changer, remote $200
CD player $125
HD radio $50
Media drive $15
MP3-compatible player $50
Rear seat audio controls$25 
S Voice support $0
Satellite radio$200 
Satellite radio - one year subscription $250
Siri Eyes Free support $0
SMS text-to-speech reader $25
Telematics service, such as OnStar $200
Telematics service, such as OnStar, with navigation$225 
Text dictation $50
Traffic + travel information $25
USB port $25
Voice control for external devices $0
Voice recorder $0
Instruments, Lights, and Mirrors 
Auto-dimming headlights$200 
Auto-dimming passenger-side mirror $75
Compass $0
Head-up display (HUD)$350 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Interior ambient lighting $150
Power-folding mirrors $50
Steering-linked headlights $150
Trip computer$150 
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Center armrest(s), second row$50 
Heated second row seats$200 
Manual thigh support length adjuster, driver seat $50
Manual thigh support length adjuster, passenger seat $50
No leather in second row $-300
Power seatback bolsters, driver seat $100
Power seatback bolsters, passenger seat $100
Synthetic suede inserts in leather seating surfaces$0 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500
Auto-leveling rear shocks$200 
Electronic systems calibration selector $200
Performance steering system (optional)$0 
Transmission 
Launch control $100
Steering-wheel-mounted transmission controls $100
Total Value of Features$5,425$11,360
Value of Feature Adjustments$0$5,935
Value of Feature Adjustments0-5,516

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Specifications Comparison: Cadillac STS vs. BMW Z4

Model Year20092016
ModelSTSZ4
Body4dr Sedan2dr Hardtop conv.
Wheelbase116.4 in98.3 in
Length196.7 in166.9 in
Width72.6 in70.5 in
Height57.6 in50.8 in
Curb Weight4,233 lb.3,538 lb.
Fuel Capacity17.0 gal.14.5 gal.
Row 1 Headroom38.7 in39.1 in
Row 1 Shoulder Room58.6 in53.3 in
Row 1 Hip Room54.6 in0.0 in
Row 1 Legroom42.6 in42.2 in
Row 2 Headroom37.9 in0.0 in
Row 2 Shoulder Room57.4 in0.0 in
Row 2 Hip Room55.6 in0.0 in
Row 2 Legroom38.3 in0.0 in
Cargo Volume13.8 ft310.9 ft3

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Option Package Details
BMW Z4 sDrive35is

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%
Cold Weather Package
FeatureValueRequested?
Heated front seats200Yes
Heated steering wheel100Yes
Headlight washers50Yes
Total Requested350100%
Total Not Requested00%
Technology Package
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio100Yes
Media drive15No
Traffic + travel information25No
App support0No
Remote app25No
Siri Eyes Free support0No
S Voice support0No
Text dictation50No
SMS text-to-speech reader25No
Voice recorder0No
Smartphone integration0No
Total Requested70083%
Total Not Requested14017%

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