DecodedCars2018 Cadillac CT6
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2018 models.
- Class
- Large Cars
- Body styles
- 2.0l 4dr Sedan, 3.0l Twin Turbo AWD 4dr Sedan, 3.0l Twin Turbo AWD Platinum 4dr Sedan, 3.6l AWD 4dr Sedan
- Engines
- 2.0L 4-cyl turbo, 3.0L 6-cyl turbo, 3.6L 6-cyl
- Drivetrain
- Rear-Wheel Drive, All-Wheel Drive
- Fuel
- Premium Gasoline, Plug-in Hybrid, Regular Gasoline
- MPG (best)
- 25 combined · 23 city / 30 hwy
- Length
- 203.9 in
- Curb weight
- 3,646–4,385 lb
- NHTSA rating
- Not rated
- Recalls
- 2 campaigns
Pros & cons
What's good
- Plug-in hybrid version availableOffered as a plug-in hybrid as well as gas.
- AWD / 4WD available
Watch out for
No weak spots against similar models in the data.
Calculated from EPA, NHTSA and vPIC data against 25 similar 2018 models — not a review. How we calculate this →
Overview
The 2018 Cadillac CT6 is a large car offered with 3 engines (2.0L 4-cyl turbo, 3.0L 6-cyl turbo and 3.6L 6-cyl), including a hybrid version and rear-wheel drive and all-wheel drive.
It measures about 204 inches long and 74 inches wide on a 122-inch wheelbase, with a curb weight of roughly 3,646 lb (2.0l 4dr Sedan).
EPA rates its most efficient version at 25 MPG combined (23 city / 30 highway), 8% better than the 2018 large car average of 23.1 MPG, for an estimated $3,200 a year in fuel.
NHTSA has not published a 5-Star overall rating for this model year.
It has 2 recall campaigns on file and owners have filed 12 complaints with NHTSA since 2015, most often about the power train.
What changed for 2018
No changes to engines, powertrains, drivetrains, size, EPA ratings or NHTSA crash rating compared with the 2017 CT6 — a carry-over year in the data.
Compared with 2017; trim, feature and price changes aren't covered. See the 2017 CT6 →
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| 2.0l 4dr Sedan | 203.9 in | 74 in | 57.9 in | 122 in | 64.2 / 65 in | 3,646 lb | 51/49 |
| 3.0l Twin Turbo AWD 4dr Sedan | 203.9 in | 74 in | 57.9 in | 122 in | 64.2 / 65 in | 4,165 lb | 54/46 |
| 3.0l Twin Turbo AWD Platinum 4dr Sedan | 203.9 in | 74 in | 57.9 in | 122 in | 64.2 / 65 in | 4,385 lb | 54/46 |
| 3.6l AWD 4dr Sedan | 203.9 in | 74 in | 57.9 in | 122 in | 64.2 / 65 in | 3,924 lb | 53/47 |
| 3.6l AWD Platinum 4dr Sedan | 203.9 in | 74 in | 57.9 in | 122 in | 64.2 / 65 in | 4,262 lb | 53/47 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| CT6 | 2.0L 4-cyl turbo | Automatic (S8) | Rear-Wheel Drive | 22 / 30 / 25 | +8% | $3,300 | 360 |
| CT6 Plug-In Plug-in Hybrid | 2.0L 4-cyl turbo | Automatic (variable gear ratios) | Rear-Wheel Drive | 23 / 29 / 25 | -8% | $3,300 | 144 |
| CT6 AWD | 3.0L 6-cyl turbo | Automatic (S8) | All-Wheel Drive | 18 / 26 / 21 | -9% | $3,900 | 424 |
| CT6 AWD | 3.6L 6-cyl | Automatic (S8) | All-Wheel Drive | 18 / 27 / 21 | -9% | $3,200 | 416 |
EPA estimates; "vs. class" is combined MPG against the 2018 EPA class average. How we calculate this →
Safety ratings & technology
NHTSA has not published 5-Star ratings for the 2018 Cadillac CT6.
Similar 2018 large cars
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2018 Cadillac CT6 (this car) | 25 MPG | Not rated | 2 |
| 2018 BMW 5 Series | 30 MPG | Not rated | 0 |
| 2018 Lexus LS | 28 MPG | Not rated | 4 |
| 2018 Lincoln Continental | 21 MPG | ★★★★★ | 2 |
| 2018 Tesla Model S | 335 mi | Not rated | 11 |
| 2018 Jaguar XJ | 21 MPG | Not rated | 0 |
| 2018 Porsche Panamera | 24 MPG | Not rated | 8 |
Recalls (2)
Seat Belts › Rear/Other · Sep 26, 2018
NHTSA campaign 18V673000 · 15,800 vehicles
- Problem
- General Motors LLC (GM) is recalling certain 2018-2019 Cadillac CT6, Escalade ESV, Chevrolet Suburban, Volt, and GMC Yukon XL vehicles. Certain second-row or third-row rear seatbelts retractor assemblies may not automatically lock when the seatbelt is fully pulled out of the retractor, possibly preventing a child seat from being properly secured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
- Risk
- If the child seat is not properly secured in the event of a crash, it can increase the risk of injury.
- Fix
- GM will notify owners, and dealers will inspect the rear seatbelt retractors and replace them if necessary, free of charge. The recall began November 7, 2018. Owners may contact Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 18315.
Child Seat › Latch Strap · Jun 28, 2018
NHTSA campaign 18V437000 · 22,043 vehicles
- Problem
- General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CT6 vehicles. The inboard child seat anchorage bars may have had excess structural adhesive applied during assembly, which can interfere with the installation of a child seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."
- Risk
- If the child seat cannot be attached correctly to the anchorage bar, there is an increased the risk of injury.
- Fix
- GM will notify owners, and dealers will inspect, remove any excess adhesive, and apply anti-corrosion primer to the inboard child seat anchorage bars, free of charge. The recall began August 3, 2018. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 18228.
Not every 2018 Cadillac CT6 is affected — only a VIN check confirms your car.
Owner-reported problems
Unverified owner reports; best-sellers collect more.
Used 2018 Cadillac CT6 buyer's checklist
- Run the VIN at nhtsa.gov/recalls. 2 recalls this year — ask for proof of repairs.
- Power Train — 4 owner reports. Test-drive through all gears, including reverse; note slipping, harsh or delayed shifts.
- Engine — 4 owner reports. Cold-start the engine, listen for knocking, and watch for warning lights or hesitation on acceleration.
- Steering — 3 owner reports. Turn lock-to-lock while parked and on the road; listen for noises and feel for heavy or loose steering.
- Mileage to watch. Owners typically reported problems around 27,000 miles; ask what was repaired near that point.
- Hybrid system. Check for hybrid-system warning lights and ask whether the high-voltage battery has been replaced or is still under warranty.
- Before you pay: service records, a history report and an independent inspection.
Generated by DecodedCars from NHTSA recalls and owner complaints for the 2018 Cadillac CT6. Not a substitute for a professional inspection.
Other CT6 years
Compare all years →Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Cadillac. How we calculate this →