Pros: Lightweight structure helps provide an agile driving character; excellent rear-seat space; surprisingly robust performance and refinement from base turbocharged 4-cylinder engine; pricing undercuts most class competitors
Cons: Trunk is small for the class and oddly shaped; ride is a bit less serene than in rival premium large sedans; interior materials are slightly less posh than some class competitors; available sunroof intrudes on headroom
CG Says: The 2017 Cadillac CT6 gains a new plug-in hybrid model. The PLUG-IN combines a turbocharged 2.0-liter liter four-cylinder engine with two electric motors to produce 335 horsepower. PLUG-IN is capable of travelling 31 miles on electric power alone and has fuel economy of 62 MPGe. Conventional CT6s are little changed following their debut last year. Cadillac’s flagship sedan competes with traditional class stalwarts such as the Mercedes-Benz S-Class, BMW 7-Series, Jaguar XJ, and Lexus LS–but its competitive prices also make it a compelling alternative to premium midsize players such as the Audi A6 and BMW 5-Series. The CT6 is lighter than other large luxury cars thanks to a lightweight, aluminum-intensive structure. The base engine is a 265-horsepower turbocharged 2.0-liter 4-cylinder. The step-up 3.6-liter V6 develops 335 hp. The top-line engine is a twin-turbo 3.0-liter V6 with 404 hp. Both V6s have cylinder deactivation for improved fuel economy. The four-cylinder and plug-in hybrid are rear-drive only, while the V6s have standard all-wheel drive. The four-cylinder and V6s use an 8-speed automatic transmission. The CT6’s chassis and suspension are tuned for engaging handling, so its ride is a bit less cushy than some competitors. GM’s Magnetic Ride Control adaptive suspension and Active Rear Steer are offered in an Active Chassis Package (which is standard on the Platinum model). Safety and technology options include Pedestrian Collision Mitigation, Enhanced Night Vision, and surround-view cameras. A unique feature is a rearview mirror that displays a camera image with a wider field of vision than a conventional mirror. As befits a flagship sedan, the rear-seat passengers can be pampered with heated/cooled/massaging reclining seats, quadzone climate controls, and dual-screen entertainment system. The CT6 isn’t quite as regal as the traditional German large luxury cars, but it also is significantly cheaper than those competitors. The CT6 offers premium large-car interior room and available amenities at prices that are in line with most premium midsize competitors. That, along with its engaging driving personality and long list of available luxury features, make the 2017 Cadillac CT6 well worth checking out.
| Class | Premium Large Car |
| Body Style(s) | 4-door sedan |
| Passenger Count | 5 |
| Drive Wheels | rear-wheel drive, all-wheel drive |
| Manufacturer | Cadillac |
| Nation of Manufacture | USA, China |
| Base Prices | 2.0 Turbo: $53,495 2.0 Turbo Luxury: $58,395 AWD 3.6: $55,495 AWD 3.6 Luxury: $60,395 AWD 3.6 Premium Luxury: $63,595 AWD 3.6 Platinum: $83,495 AWD 3.0 Twin Turbo Luxury: $64,395 AWD 3.0 Twin Turbo Premium Luxury: $67,595 AWD 3.0 Twin Turbo Platinum: $87,495 PLUG-IN: $75,095 |
| Base Engine turbocharged 2.0-liter 4-cylinder (2.0 Turbo) |
| Horsepower 265 |
| Std. Transmission 8-speed automatic |
| Avail. Transmission NA |
| EPA City Range (mpg) 22 |
| EPA Hwy Range (mpg) 30 |
| Optional Engine turbocharged 2.0-liter 4-cylinder/electric (PLUG-IN) |
| Horsepower 335 |
| Std. Transmission CVT |
| Avail. Transmission NA |
| EPA Gas Engine Combined (mpg) 26 |
| EPA Electric Engine Combined (MPGe) 62 |
| Optional Engine 3.6-liter V6 (3.6) |
| Horsepower 335 |
| Std. Transmission 8-speed automatic |
| Avail. Transmission NA |
| EPA City Range (mpg) 18 |
| EPA Hwy Range (mpg) 27 |
| Optional Engine turbocharged 3.0-liter V6 (Twin Turbo) |
| Horsepower 404 |
| Std. Transmission 8-speed automatic |
| Avail. Transmission NA |
| EPA City Range (mpg) 18 |
| EPA Hwy Range (mpg) 26 |
