The 2018 Cadillac CT6 is a full-size luxury sedan designed to compete with European rivals. It debuted in 2016 as Cadillac's flagship sedan and offered a blend of comfort, technology, and performance. Key trims included the base CT6, Luxury, Premium Luxury, and Platinum.
Pricing ranged from around $49,000 to over $88,000 when new, depending on the trim and options. Its distinctive styling, spacious interior, and available Super Cruise driver-assistance system made it stand out.
Pricing ranged from around $49,000 to over $88,000 when new, depending on the trim and options. Its distinctive styling, spacious interior, and available Super Cruise driver-assistance system made it stand out.
The Good
The 2018 Cadillac CT6 offers a compelling blend of advantages. For practical buyers, it boasts competitive fuel efficiency for its class and a comfortable ride. Emotionally, the CT6 provides a stylish design, powerful engine options, including a twin-turbo V6, and a luxurious interior that creates a premium driving experience. The availability of Super Cruise adds a further layer of desirability. While not class leading, the CT6 also offers good value in the used market.
The Bad
While generally well-regarded, the 2018 Cadillac CT6 has some weaknesses. Some owners have reported issues with the infotainment system and its responsiveness. Reliability ratings can be average, and some repairs can be expensive due to the car's complexity. The rear seat, while comfortable, isn't as spacious as some rivals. Also, certain advanced features are limited to higher trims, adding to the cost.
2018 Cadillac CT6: Quick Overview
Key specs for the 2018 Cadillac CT6:
- Engine Options:
- 2.0L Turbocharged I4: 265 hp
- 3.6L V6: 335 hp
- 3.0L Twin-Turbo V6: 404 hp
- 4.2L Blackwing Twin-Turbo V8 (CT6-V): 550 hp (limited availability)
- Horsepower: Ranging from 265 hp to 550 hp depending on engine.
- Fuel Economy (EPA Estimated):
- 2.0L Turbo: 22 mpg city / 31 mpg highway
- 3.6L V6: 19 mpg city / 29 mpg highway
- 3.0L Twin-Turbo V6: 18 mpg city / 27 mpg highway
- 0-60 Times:
- 2.0L Turbo: Around 6.2 seconds
- 3.6L V6: Around 6.1 seconds
- 3.0L Twin-Turbo V6: Around 5.0 seconds
- 4.2L Blackwing Twin-Turbo V8 (CT6-V): Around 3.8 seconds
- Towing Capacity: Not recommended for towing.
- Trim-Level Features:
- Base CT6: Leatherette upholstery, 10.2-inch touchscreen infotainment system, Apple CarPlay and Android Auto, rearview camera.
- Luxury: Leather upholstery, panoramic sunroof, blind-spot monitoring, rear cross-traffic alert, lane departure warning.
- Premium Luxury: Upgraded leather, Bose audio system, navigation, automatic parking assist, adaptive cruise control.
- Platinum: Semi-aniline leather, rear-seat entertainment system, massaging front seats, night vision.
- CT6-V: (Limited production) High-performance features including the 4.2L Blackwing engine, Magnetic Ride Control, performance brakes, and unique styling.
2018 Cadillac CT6 Specifications
Vehicle Information
| Year | 2018 |
| Make | Cadillac |
| Model | CT6 |
| Trim | - |
| Style | All-Wheel Drive 3.6-Liter |
| Type | Sedan |
| Category | Large Car |
Manufacturing Details
| Made In | United States |
| Manufacturing City | DETROIT HAMTRAMCK |
Dimensions
| Doors | 4-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | 58.00 inches |
| Overall Length | 204.10 inches |
| Overall Width | 74.00 inches |
| Wheelbase Length | 122.40 inches |
| Standard Seating | 5 |
Engine & Performance
| Engine | 3.6-L V-6 DOHC 24V Turbo |
| Engine Size | 3.6L |
| Engine Cylinders | 6 |
| Transmission | 8-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 8-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $56,095 |
| Invoice Price | $53,290 |
| Delivery Charges | $995 |
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What Problems Does the 2018 Cadillac CT6 Have?
Frequently reported problems for the 2018 Cadillac CT6 often revolve around the infotainment system, with users reporting slow response times, glitches, and connectivity issues. Some owners have also experienced problems with the climate control system. Early model years (2016-2017) had some recalls related to airbag deployment and brake system issues, but these were generally addressed through recalls.
Long-term reliability concerns focus on the complexity of the vehicle's technology, which can lead to potentially expensive repairs as the car ages. The air suspension, available on some trims, can also be a source of potential future problems. While the engines are generally reliable, the twin-turbo V6 can be more prone to issues if not properly maintained.
Specifically for 2018, some owners have reported issues with the Super Cruise system, with occasional disengagements or malfunctions. Checking for any outstanding recalls and ensuring all software updates have been applied is crucial when considering a used 2018 CT6. Overall, while the CT6 offers a luxurious experience, potential buyers should be aware of these potential issues and factor them into their purchase decision.
Long-term reliability concerns focus on the complexity of the vehicle's technology, which can lead to potentially expensive repairs as the car ages. The air suspension, available on some trims, can also be a source of potential future problems. While the engines are generally reliable, the twin-turbo V6 can be more prone to issues if not properly maintained.
Specifically for 2018, some owners have reported issues with the Super Cruise system, with occasional disengagements or malfunctions. Checking for any outstanding recalls and ensuring all software updates have been applied is crucial when considering a used 2018 CT6. Overall, while the CT6 offers a luxurious experience, potential buyers should be aware of these potential issues and factor them into their purchase decision.
How long will the 2018 Cadillac CT6 last?
Based on owner data and typical maintenance, a 2018 Cadillac CT6 can reasonably be expected to last for 150,000 to 200,000 miles or 10-12 years with proper care. Long-term durability hinges on consistent maintenance, particularly regarding fluid changes and addressing minor issues promptly.
Weaknesses over time include potential issues with the infotainment system, air suspension (if equipped), and the complexities of the electronic systems. Regular software updates are crucial. Cars driven primarily in harsh climates may experience accelerated wear on suspension components and increased corrosion.
Weaknesses over time include potential issues with the infotainment system, air suspension (if equipped), and the complexities of the electronic systems. Regular software updates are crucial. Cars driven primarily in harsh climates may experience accelerated wear on suspension components and increased corrosion.
What Technology & Safety Features are Included?
The 2018 Cadillac CT6 boasts a robust suite of technology, entertainment, driver-assistance, and safety features. Standard tech includes a 10.2-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility. Higher trims offer a Bose audio system, navigation, and a rear-seat entertainment system with articulating screens.
Driver-assistance features include standard rearview camera, and available features like blind-spot monitoring, rear cross-traffic alert, lane departure warning, lane keep assist, automatic parking assist, and adaptive cruise control. The most notable feature is the optional Super Cruise, a hands-free driving system for highways.
Safety features include multiple airbags, stability control, and traction control. Optional safety features include night vision and enhanced automatic emergency braking. The NHTSA (National Highway Traffic Safety Administration) gave the 2018 Cadillac CT6 a 5-star overall safety rating. The IIHS (Insurance Institute for Highway Safety) ratings vary, but the CT6 generally performed well in crash tests. However, specific ratings depend on the model year and equipment, so it's important to verify the ratings for the specific vehicle being considered.
Driver-assistance features include standard rearview camera, and available features like blind-spot monitoring, rear cross-traffic alert, lane departure warning, lane keep assist, automatic parking assist, and adaptive cruise control. The most notable feature is the optional Super Cruise, a hands-free driving system for highways.
Safety features include multiple airbags, stability control, and traction control. Optional safety features include night vision and enhanced automatic emergency braking. The NHTSA (National Highway Traffic Safety Administration) gave the 2018 Cadillac CT6 a 5-star overall safety rating. The IIHS (Insurance Institute for Highway Safety) ratings vary, but the CT6 generally performed well in crash tests. However, specific ratings depend on the model year and equipment, so it's important to verify the ratings for the specific vehicle being considered.
What Colors Options are Available?
Exterior Colors
Black Raven
Radiant Silver Metallic
Stellar Black Metallic
Crystal White Tricoat
Dark Adriatic Blue Metallic
Red Passion Tintcoat
Shadow Metallic
Bronze Dune Metallic
Interior Colors
Light Neutral
Jet Black
Very Dark Atmosphere
Kona Brown
2018 Cadillac CT6 Prices and Market Value
When new, the 2018 Cadillac CT6 ranged from approximately $49,000 for the base model to over $88,000 for the Platinum trim. Currently, used market prices for the 2018 CT6 range from around $25,000 to $40,000, depending on condition, mileage, and trim level.
The CT6 has experienced significant depreciation, typical for luxury sedans. Factors affecting resale value include mileage, condition, trim level (Platinum and CT6-V models hold their value better), and the presence of desirable options like Super Cruise. Lower mileage and a clean Carfax report command higher prices.
The CT6 has experienced significant depreciation, typical for luxury sedans. Factors affecting resale value include mileage, condition, trim level (Platinum and CT6-V models hold their value better), and the presence of desirable options like Super Cruise. Lower mileage and a clean Carfax report command higher prices.
2018 Cadillac CT6 Cost of Ownership
The 2018 Cadillac CT6 is moderately costly to own. Insurance premiums are typical for a luxury sedan. Fuel costs depend on the engine, with the turbo I4 being the most economical. Maintenance can be expensive, especially for less common repairs. Repairs, particularly for the complex electronics and air suspension, can be costly. Overall, while not the most economical choice, with careful maintenance and conservative driving, long-term ownership costs can be managed.
2018 Cadillac CT6 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
19.50 gallons
City Mileage
18 miles/gallon
Highway Mileage
27 miles/gallon
2018 Cadillac CT6 Safety Rating
NHTSA
2018 Cadillac CT6 Warranty
Basic
Original warranty
48 months / 50,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
72 months / 70,000 miles
Estimated remaining
Expired
Rust
Original warranty
48 months / 50,000 miles
Estimated remaining
Expired
2018 Cadillac CT6 Insurance
Insurance for a 2018 Cadillac CT6 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2018 Cadillac CT6 Compare to Other Sedan?
The 2018 Cadillac CT6 competes with the BMW 5 Series, Mercedes-Benz E-Class, Audi A6, and Lexus GS. In terms of performance, the CT6 offers competitive engine options, especially the twin-turbo V6 and the limited-production CT6-V with the Blackwing V8. Features are generally comparable, with the CT6's Super Cruise being a standout. However, reliability ratings for the CT6 are generally lower than those of the Lexus GS and some BMW and Mercedes-Benz models.
Price-wise, the CT6 offers a compelling value proposition in the used market compared to its German rivals.
Alternatives to consider include:
Price-wise, the CT6 offers a compelling value proposition in the used market compared to its German rivals.
Alternatives to consider include:
- Lexus GS: For superior reliability.
- BMW 5 Series: For a more engaging driving experience and a wide range of engine options.
- Mercedes-Benz E-Class: For a luxurious interior and advanced technology.
- Audi A6: For a stylish design and Quattro all-wheel drive.
Ranks #1494 Sedan
| 1 | 2023 Toyota Camry | (5.0★) |
| 2 | 2023 Honda Accord | (0.0★) |
| 3 | 2023 Lexus ES | (0.0★) |
| 4 | 2024 Subaru Legacy | (5.0★) |
| 5 | 2022 Mazda MX-30 | (4.0★) |
| 6 | 2024 BMW M3 | (0.0★) |
| 7 | 2023 Ford Mustang | (5.0★) |
| 8 | 2023 Mercedes-Benz AMG GT | (0.0★) |
| 9 | 2023 Audi A3 | (0.0★) |
| 10 | 2023 Chevrolet Camaro | (5.0★) |
| 11 | 2023 Hyundai Elantra Hybrid | (0.0★) |
| 12 | 2023 Nissan Altima | (4.0★) |
| 1494 | 2018 Cadillac CT6 | (0.0★) |
Final Verdict: Is the 2018 Cadillac CT6 a Good Sedan?
The 2018 Cadillac CT6 is ideal for buyers seeking a distinctive, feature-rich luxury sedan at a competitive price point in the used market. It's worth buying if you appreciate its unique styling, comfortable ride, and available technology like Super Cruise.
A used 2018 CT6, particularly a Premium Luxury or Platinum trim with Super Cruise, represents good value. However, be aware of potential reliability concerns and factor in potential maintenance costs. A pre-purchase inspection is highly recommended. The CT6 is less appealing as a new purchase given its depreciation and the availability of newer, more reliable alternatives.
A used 2018 CT6, particularly a Premium Luxury or Platinum trim with Super Cruise, represents good value. However, be aware of potential reliability concerns and factor in potential maintenance costs. A pre-purchase inspection is highly recommended. The CT6 is less appealing as a new purchase given its depreciation and the availability of newer, more reliable alternatives.
Drew B
Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma