BMW Z4 BMW Z4 2007 Cadillac CT6 Cadillac CT6 2018

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BMW Z4 vs. Cadillac CT6 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 Z4 vs. Cadillac CT6 Invoice Comparison

Lowest Total Price: $57,000

BMW Z4 M Coupe   
Difference: $10,065

Lowest Total Invoice: $52,435

BMW Z4 M Coupe   
Difference: $11,274

Calculate Payments

  Down Payment Interest Rate Term
Model Year2007201820182018
ModelZ4CT6CT6CT6
TrimM CoupeLuxuryPremium LuxuryPlatinum
Body2dr Hatch4dr Sedan4dr Sedan4dr Sedan
Base Price $50,100 $59,195 $65,295 $84,295
Base Invoice $46,090 $56,235 $62,030 $80,080
Premium Package 2,850      
Metallic paint (extra cost) 475 625 625  
Wood trim 0      
Navigation system 1,800      
Heated front seats 500      
HD radio 500      
CD player, remote   250 250  
3.0L V6   6,000 4,000 4,000
Premium Package 2,595      
Metallic paint (extra cost) 430 556 556  
Wood trim 0      
Navigation system 1,640      
Heated front seats 455      
HD radio 450      
CD player, remote   223 223  
3.0L V6   5,700 3,800 3,800
Options (change) 6,125 6,875 4,875 4,000
Options (change) 5,570 6,479 4,579 3,800
Destination 775 995 995 995
Total Price $57,000 $67,065 $71,165 $89,290
Total Invoice $52,435 $63,709 $67,604 $84,875

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

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TrueDelta Value Comparison: BMW Z4 vs. Cadillac CT6

Lowest Adjusted Price: Cadillac CT6 Luxury
Lowest Adjusted Invoice: BMW Z4 M Coupe
TrueDelta Adjusted Price Difference: $205
TrueDelta Adjusted Invoice Difference: $1,518
Model Year2007201820182018
ModelZ4CT6CT6CT6
TrimM CoupeLuxuryPremium LuxuryPlatinum
Body2dr Hatch4dr Sedan4dr Sedan4dr Sedan
Engine330hp I6404hp V6404hp V6404hp V6
TransmissionM6T8T8T8
DrivetrainRWDAWDAWDAWD
EPA Fuel Economy (city/highway)16/24 MPG18/26 MPG18/26 MPG18/26 MPG
Audio (watts, speakers)430, 10?, 10?, 10?, 34
Tire (rear if not all the same)225/45-18245/45-19245/45-19245/40-20
Total Price$57,000$67,065$71,165$89,290
Adjustments for Features0-10,270-12,770-22,200
Feature-Adjusted Total Price$57,000$56,795$58,395$67,090
Cost Above Minimum$0$0$1,600$10,295
Total Invoice$52,435$63,709$67,604$84,875
Adjustments for Features0-9,756-12,131-21,102
Feature-Adjusted Total Invoice$52,435$53,953$55,473$63,773
Cost Above Minimum$0$0$1,520$9,820

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Features Comparison: BMW Z4 vs. Cadillac CT6

Model Year2007201820182018
ModelZ4CT6CT6CT6
TrimM CoupeLuxuryPremium LuxuryPlatinum
Body2dr Hatch4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manual$150   
8-speed manually-shiftable automatic $1300$1300$1300
RWD$0   
AWD $1700$1700$1700
Accessories 
AC power outlet $100$100$100
Active noise reduction $0$0$0
Adaptive cruise control, all-speed   $850
Cruise control$150$150$150 
Electronic engine sound enhancement   $0
Hands-free trunk or liftgate $100$100$100
Heated steering wheel $100$100$100
Power rear side windows $200$200$200
Power trunk closer $350$350$350
Proximity key $250$250$250
Remote app $25$25$25
Remote start $150$150$150
Semi-automated parking system $500$500$500
Sunshades, second row $125$125$125
Tilt/telescoping steering wheel, manual$250   
Tilt/telescoping steering wheel, power $350$350$350
Universal garage door opener $100$100$100
Brakes, Airbags, and Other Safety 
Around view cameras $500$500$500
Automatic braking, high-speed or partial   $200
Automatic braking, low-speed $200$200$200
Backup collision intervention   $150
Blind spot warning system $200$200$200
Cross-traffic warning, rear $100$100$100
Following distance indicator $25$25$25
Forward collision warning $200$200$200
Hands-free driving on limited-access highways   $1000
Lane departure warning $200$200$200
Lane keeping assist $400$400$400
Night vision   $1750
Obstacle detection, front $150$150$150
Obstacle detection, rear $250$250$250
Pedestrian detection $50$50$50
Radar- or camera-based collision preparation system $0$0$0
Safety key $5$5$5
Side curtain airbags $350$350$350
Surround view video recorder $50$50$50
Vehicle health reports $0$0$0
Cargo Management 
Cargo cover$75   
Rear seat pass-through $100$100$100
Climate Control 
Dual-zone climate control $125$125$125
Heated windshield washer nozzles$15   
Ionizing air filtration   $50
Rear air vents $100$100 
Rear air vents with automatic controls   $250
Rear dual-zone climate control   $125
Drivetrain 
Limited-slip rear differential$300   
Engine / Motor 
Automatic start / stop $150$150$150
Exterior 
Active grille shutters $0$0$0
Laminated front side windows $200$200$200
Panoramic sunroof  $1200$1200
Infotainment 
4G LTE connectivity $0$0$0
Android Auto support $100$100$100
App support $0$0$0
Apple CarPlay support $100$100$100
Bluetooth audio streaming $25$25$25
CD player$125   
CD player, remote $100$100 
Entertainment system with dual headrest screens   $1200
HDMI port   $25
MP3-compatible player$50$50$50 
Satellite radio $200$200$200
SMS text-to-speech reader $25$25$25
Streaming video device   $30
Streaming video support   $25
Telematics service, such as OnStar$200   
Telematics service, such as OnStar, with navigation $225$225$225
Traffic information $25$25$25
Voice control for external devices $0$0$0
Voice control for nav and audio $100$100$100
Wi-Fi hotspot $50$50$50
Wireless charging station $75$75$75
Instruments, Lights, and Mirrors 
Approach detection $25$25$25
Auto-dimming headlights $200$200$200
Auto-dimming passenger-side mirror$75   
Cornering lights $50$50$50
Fog lights$125   
Head-up display (HUD)  $350$350
Headlight washers$50   
Illuminated visor mirror, driver $50$50$50
Illuminated visor mirror, passenger $50$50$50
Large color reconfigurable instrument cluster display  $250$250
LED headlights $1000$1000$1000
Power-folding mirrors $50$50$50
Rear camera mirror  $200$200
Visor mirror, driver$10   
Visor mirror, passenger$10   
Xenon HID headlights$500   
Seats and Interior Trim 
Center armrest(s), second row $50$50$50
Cooled or ventilated front seats  $300$300
Cooled or ventilated second row seats   $200
Heated second row seats  $200$200
Illuminated door sill trim plates $200$200$200
Manual thigh support length adjuster, driver seat$50   
Manual thigh support length adjuster, passenger seat$50   
Massage, driver seat   $100
Massage, passenger seat   $100
Massage, second row seats   $150
Memory system, passenger seat $150$150$150
Power 4-way lumbar adjuster, driver seat $150$150$150
Power 4-way lumbar adjuster, passenger seat $150$150$150
Power 4-way lumbar adjuster, second row seats   $225
Power recliner, second row seats   $150
Power thigh support length adjuster, driver seat   $100
Power thigh support length adjuster, passenger seat   $100
Power tilt adjuster, second row seats   $150
Power upper seatback recliner, driver seat   $100
Power upper seatback recliner, passenger seat   $100
Upholstered instrument panel $300$300 
Upholstered instrument panel, leather   $1000
Suspension, Wheels, and Tires 
Adaptive dampers - electrical   $500
Rear wheel steering   $1500
Sport suspension (upgrade)$0   
Transmission 
Steering-wheel-mounted transmission controls $100$100$100
Total Value of Features$2,185$12,455$14,955$24,385
Value of Feature Adjustments$0$10,270$12,770$22,200
Value of Feature Adjustments0-9,756-12,131-21,102

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Specifications Comparison: BMW Z4 vs. Cadillac CT6

Model Year20072018
ModelZ4CT6
Body2dr Hatch4dr Sedan
Wheelbase98.2 in122.4 in
Length161.9 in204.0 in
Width70.1 in74.0 in
Height49.9 in57.9 in
Curb Weight3,219 lb.4,085 lb.
Fuel Capacity14.5 gal.19.5 gal.
Row 1 Headroom37.3 in40.1 in
Row 1 Shoulder Room52.5 in58.3 in
Row 1 Hip Room0.0 in55.8 in
Row 1 Legroom42.0 in42.3 in
Row 2 Headroom0.0 in38.0 in
Row 2 Shoulder Room0.0 in56.1 in
Row 2 Hip Room0.0 in53.4 in
Row 2 Legroom0.0 in40.4 in
Cargo Volume9.2 ft315.3 ft3

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Option Package Details
BMW Z4 M Coupe

Premium Package
FeatureValueRequested?
Cruise control150Yes
Surround sound250Yes
THX-certified, 430W, 10 speakers (with subwoofer)350No
Auto-dimming rearview mirror150Yes
Telematics service, such as OnStar200Yes
Bluetooth cell phone link100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested182581%
Total Not Requested42519%

Option Package Details
Cadillac CT6 Luxury

CD player, remote
FeatureValueRequested?
CD player, remote100Yes
MP3-compatible player50Yes
Total Requested150100%
Total Not Requested00%
turbocharged
3.0L V6
DOHC-4v
404 hp@5500
400 lb-ft@2500
FeatureValueRequested?
turbocharged
3.0L V6
DOHC-4v
404 hp@5500
400 lb-ft@2500
1000Yes
AWD0Yes
245/45HR19 tires400No
Total Requested100071%
Total Not Requested40029%

Option Package Details
Cadillac CT6 Premium Luxury

CD player, remote
FeatureValueRequested?
CD player, remote100Yes
MP3-compatible player50Yes
Total Requested150100%
Total Not Requested00%

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