Audi R8 Audi R8 2008 Cadillac CT6 Cadillac CT6 2017

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Audi R8 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.

Audi R8 vs. Cadillac CT6 Invoice Comparison

Lowest Total Price: $89,345

Cadillac CT6 Platinum   
Difference: $44,705

Lowest Total Invoice: $84,894

Cadillac CT6 Platinum   
Difference: $39,990

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082017
ModelR8CT6
Trim4.2Platinum
Body2dr Coupe4dr Sedan
Base Price $109,000 $83,795
Base Invoice $101,370 $79,605
Convenience Package 3,500  
Metallic paint (extra cost) 650  
Navigation system 2,000  
Upholstered instrument panel, leather 5,500  
Synthetic suede headliner 1,300  
6-speed automated manual 9,000  
Rear spoiler   495
Cargo net   60
3.0L V6   4,000
Convenience Package 3,255  
Metallic paint (extra cost) 605  
Navigation system 1,860  
Upholstered instrument panel, leather 5,115  
Synthetic suede headliner 1,209  
6-speed automated manual 8,370  
Rear spoiler   441
Cargo net   53
3.0L V6   3,800
Options (change) 21,950 4,555
Options (change) 20,414 4,294
Destination 1,000 995
Gas Tax 2,100 0
Total Price $134,050 $89,345
Total Invoice $124,884 $84,894

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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 Audi R8 dealer quotes or Cadillac CT6 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Audi R8 vs. Cadillac CT6

Lowest Adjusted Price and Invoice: Cadillac CT6 Platinum
TrueDelta Adjusted Price Difference: $62,115
TrueDelta Adjusted Invoice Difference: $56,533
Model Year20082017
ModelR8CT6
Trim4.2Platinum
Body2dr Coupe4dr Sedan
Engine420hp V8404hp V6
TransmissionS6T8
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)13/20 MPG18/26 MPG
Audio (watts, speakers)140, 7?, 34
Tire (rear if not all the same)235/35-19245/40-20
Total Price$134,050$89,345
Adjustments for Features0-17,410
Feature-Adjusted Total Price$134,050$71,935
Total Invoice$124,884$84,894
Adjustments for Features0-16,543
Feature-Adjusted Total Invoice$124,884$68,351

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Features Comparison: Audi R8 vs. Cadillac CT6

Model Year20082017
ModelR8CT6
Trim4.2Platinum
Body2dr Coupe4dr Sedan
Transmission and Drivetrain 
6-speed automated manual$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
Proximity key $250
Remote app $25
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 
Around view cameras $500
Automatic braking, high-speed or partial $200
Automatic braking, low-speed $200
Backup collision intervention $150
Blind spot warning system $200
Cross-traffic warning, rear $100
Following distance indicator $25
Forward collision warning $200
Lane departure warning $200
Lane keeping assist $400
Night vision $1750
Pedestrian detection $50
Radar- or camera-based collision preparation system $0
Rearview camera$200 
Side curtain airbags $350
Surround view video recorder $50
Temporary spare tire $150
Vehicle health reports $0
Cargo Management 
Rear seat pass-through $100
Climate Control 
Dual-zone climate control $125
Ionizing air filtration $50
Rear air vents with automatic controls $250
Rear dual-zone climate control $125
Engine / Motor 
Automatic start / stop $150
Mid-engine configuration$0 
Exterior 
Active grille shutters $0
Bright-finished fuel door$100 
Laminated front side windows $200
Panoramic sunroof $1200
Rear spoiler $200
Retractable rear spoiler$400 
Infotainment 
4G LTE connectivity $0
Android Auto support $100
App support $0
Apple CarPlay support $100
Aux input $50
Bluetooth audio streaming $25
CD changer, in-dash$325 
Entertainment system with dual headrest screens $1200
HD radio $50
HDMI port $25
MP3-compatible player$50 
SD Card slot$25 
SMS text-to-speech reader $25
Streaming video device $30
Streaming video support $25
Surround sound $250
Telematics service, such as OnStar, with navigation $225
Traffic information $25
USB port $25
Voice control for external devices $0
Voice control for nav and audio $100
Wi-Fi hotspot $50
Wireless charging station $75
Instruments, Lights, and Mirrors 
Approach detection $25
Auto-dimming headlights $200
Compass$0 
Cornering lights $50
Head-up display (HUD) $350
Illuminated visor mirror, driver $50
Illuminated visor mirror, passenger $50
Large color reconfigurable instrument cluster display $250
LED headlights $1000
Power-folding mirrors $50
Rear camera mirror $200
Visor mirror, driver$10 
Visor mirror, passenger$10 
Xenon HID headlights$500 
Seats and Interior Trim 
Center armrest(s), second row $50
Cooled or ventilated front seats $300
Cooled or ventilated second row seats $200
Door sill trim plates$100 
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, driver seat $200
Memory system, passenger seat $150
Metal pedals$75 
No leather in second row$-300 
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
Wood trim $300
Suspension, Wheels, and Tires 
Rear wheel steering $1500
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$4,695$22,105
Value of Feature Adjustments$0$17,410
Value of Feature Adjustments0-16,543

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Specifications Comparison: Audi R8 vs. Cadillac CT6

Model Year20082017
ModelR8CT6
Body2dr Coupe4dr Sedan
Wheelbase104.3 in122.4 in
Length174.5 in204.0 in
Width75.0 in74.0 in
Height49.3 in57.9 in
Curb Weight3,605 lb.4,085 lb.
Fuel Capacity23.8 gal.19.5 gal.
Row 1 Headroom38.0 in40.1 in
Row 1 Shoulder Room54.4 in58.3 in
Row 1 Hip Room0.0 in55.8 in
Row 1 Legroom41.1 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 Volume3.5 ft315.3 ft3

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Option Package Details
Audi R8 4.2

Convenience Package
FeatureValueRequested?
CD changer, in-dash200No
Universal garage door opener100Yes
Bluetooth cell phone link100Yes
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Rearview camera200Yes
Auto-dimming driver-side mirror75Yes
Cargo net40Yes
Hill start assist75No
Total Requested91577%
Total Not Requested27523%

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