BMW i8 BMW i8 2014 Cadillac CT6 Cadillac CT6 2017

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BMW i8 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 i8 vs. Cadillac CT6 Invoice Comparison

Lowest Total Price: $88,790

Cadillac CT6 Platinum   
Difference: $46,067

Lowest Total Invoice: $84,400

Cadillac CT6 Platinum   
Difference: $39,602

Calculate Payments

  Down Payment Interest Rate Term
Model Year20142017
Modeli8CT6
TrimBasePlatinum
Body2dr Coupe4dr Sedan
Base Price $135,700 $83,795
Base Invoice $125,025 $79,605
Giga World 2,000  
3.0L V6   4,000
Giga World 1,820  
3.0L V6   3,800
Options (change) 2,000 4,000
Options (change) 1,820 3,800
Destination 950 995
Gas Tax -3,793 0
Total Price $134,857 $88,790
Total Invoice $124,002 $84,400

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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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TrueDelta Value Comparison: BMW i8 vs. Cadillac CT6

Lowest Adjusted Price and Invoice: Cadillac CT6 Platinum
TrueDelta Adjusted Price Difference: $59,432
TrueDelta Adjusted Invoice Difference: $52,306
Model Year20142017
Modeli8CT6
TrimBasePlatinum
Body2dr Coupe4dr Sedan
Engine357hp I3 PiH404hp V6
TransmissionT6T8
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)28/29 MPG18/26 MPG
Audio (watts, speakers)360, 11?, 34
Tire (rear if not all the same)215/45-20245/40-20
Total Price$134,857$88,790
Adjustments for Features0-13,365
Feature-Adjusted Total Price$134,857$75,425
Total Invoice$124,002$84,400
Adjustments for Features0-12,704
Feature-Adjusted Total Invoice$124,002$71,696

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Features Comparison: BMW i8 vs. Cadillac CT6

Model Year20142017
Modeli8CT6
TrimBasePlatinum
Body2dr Coupe4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
8-speed manually-shiftable automatic $1300
AWD$1700$1700
Accessories 
AC power outlet $100
Active noise reduction $0
Adaptive cruise control, all-speed $850
Cruise control$150 
Electronic engine sound enhancement $0
Hands-free trunk or liftgate $100
Heated steering wheel $100
Power rear side windows $200
Power trunk closer $350
Remote start $150
Semi-automated parking system $500
Sunshades, second row $125
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Brakes, Airbags, and Other Safety 
Automatic braking, high-speed or partial $200
Backup collision intervention $150
Cross-traffic warning, rear $100
Driver drowsiness monitor$150 
Following distance indicator $25
Lane departure collision mitigation$50 
Lane keeping assist $400
Night vision $1750
Radar- or camera-based collision preparation system $0
Surround view video recorder $50
Temporary spare tire $150
Vehicle health reports $0
Wide-view front camera$150 
Cargo Management 
Rear seat pass-through $100
Climate Control 
Automatic air recirculation$100 
Ionizing air filtration $50
Rear air vents with automatic controls $250
Rear air vents with manual controls$150 
Rear dual-zone climate control $125
Residual heat$50 
Engine / Motor 
3.3 kW onboard charger$0 
7 kWh battery pack$0 
Mid-engine configuration$0 
Exterior 
Active grille shutters $0
Bright-finished exhaust tip(s) $25
Carbon fiber body structure$0 
Laminated front side windows $200
Panoramic sunroof $1200
Infotainment 
4G LTE connectivity $0
Android Auto support $100
Apple CarPlay support $100
Concierge Services - 3 year subscription$150 
Entertainment system with dual headrest screens $1200
Handwriting recognition$200 
HDMI port $25
In-vehicle Internet$150 
Media drive$15 
S Voice support$0 
Satellite radio $200
Satellite radio - one year subscription$250 
Siri Eyes Free support$0 
Streaming video device $30
Streaming video support $25
Telematics service, such as OnStar$200 
Telematics service, such as OnStar, with navigation $225
Text dictation$50 
Traffic + travel information$25 
Traffic information $25
Wi-Fi hotspot $50
Wireless charging station $75
Instruments, Lights, and Mirrors 
Approach detection $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Cornering lights $50
Interior ambient lighting $150
Interior ambient lighting, configurable$150 
Power-folding mirrors $50
Rear camera mirror $200
Turn signals on or near mirrors $25
Seats and Interior Trim 
Center armrest(s), second row $50
Cooled or ventilated front seats $300
Cooled or ventilated second row seats $200
Heated second row seats $200
Illuminated door sill trim plates $200
Massage, driver seat $100
Massage, passenger seat $100
Massage, second row seats $150
Memory system, passenger seat $150
Power 4-way lumbar adjuster, driver seat $150
Power 4-way lumbar adjuster, passenger seat $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, driver seat $100
Power tilt 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
Synthetic suede headliner $650
Wood trim $300
Suspension, Wheels, and Tires 
Electronic systems calibration selector$200 
Rear wheel steering $1500
Total Value of Features$5,315$18,680
Value of Feature Adjustments$0$13,365
Value of Feature Adjustments0-12,704

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Specifications Comparison: BMW i8 vs. Cadillac CT6

Model Year20142017
Modeli8CT6
Body2dr Coupe4dr Sedan
Wheelbase110.2 in122.4 in
Length184.9 in204.0 in
Width76.5 in74.0 in
Height50.8 in57.9 in
Curb Weight3,455 lb.4,085 lb.
Fuel Capacity11.1 gal.19.5 gal.
Row 1 Headroom38.7 in40.1 in
Row 1 Shoulder Room61.1 in58.3 in
Row 1 Hip Room0.0 in55.8 in
Row 1 Legroom0.0 in42.3 in
Row 2 Headroom32.4 in38.0 in
Row 2 Shoulder Room51.5 in56.1 in
Row 2 Hip Room0.0 in53.4 in
Row 2 Legroom0.0 in40.4 in
Cargo Volume4.7 ft315.3 ft3

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