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Cadillac CT6: General Motors' Ultimate Flagship Sedan

By Arv Voss, April 21st, 2018

Cadillac's flagship sedan, the rear-wheel drive CT6, is is meaningful competition for Audi, BMW, and Mercedes-Benz.

The 2018 CT6 is not only performance-oriented, it's also a full-size vehicle that provides luxurious and comfortable transport for five at a mid-level price point among its competitors. In addition, it is drop-dead gorgeous with contemporary, state-of-the-art styling and technological features, including Cadillac's Cue connectivity, and the latest in safety and driver aids. And arriving soon, Cadillac brings enthusiasts the 2019 CT6 V-Sport. This variant boasts a new 4.2-liter Twin Turbo V-8 with an estimated 550 horsepower and 627 lb-ft of torque - matched with a 10-speed automatic transmission. It features V-Sport specific suspension tuning for improved roll control, cornering capability, steering response and a 19-inch Brembo brake system developed specifically for the vehicle.

The 2018 CT6 exhibits the latest of Cadillac's knowledge in materials and engineering. The chassis is one of the stiffest with one of the lightest bodies in its class, providing exemplary road-holding ability, rapid acceleration, and handling attributes, as well as overall pleasurable motoring.

The overall design comes together distinctively, and lets the CT6 showcase a look all its own. This Cadillac combines a distinctive, simplistic, elegant, less-angular design with a lightweight body, excellent handling, and great road-holding attributes. The CT6 stretches long and low with broad-shoulders and a muscular body. It has straight edges and flat surfaces that blends the long hood with the high shoulder and expressive 20-inch wheels.

For 2018, the CT6 adds a semi-autonomous SuperCruise adaptive cruise control option that allows hands-off driving in specific driving scenarios. Other changes are minor, including adding gas and brake pedal operation to the Park Assist feature, and some new paint hues.

strong>CT6 is offered in four trims: the base CT6, Luxury, Premium Luxury, and the top-of-the-line Platinum. Three direct-injected engines are available starting with the 265-horsepower 2.0-liter four-cylinder turbo, a 335-hp, 3.6-liter V-6, and a 404-hp, 3.0-liter twin-turbo V-6. All engines transmit power to the rear wheels through an eight-speed automatic. All-wheel drive is a V-6-model option.

Moving into the cabin the CT6 delivers a balance of luxury and functionality, featuring satin chrome and stained-wood trim with delicate carbon-fiber accents and supple leather seating, without the excess of its SUV sibling, the Escalade.

Dashboard styling emphasizes the width of the CT6, with an expressive character line running from side to side. The hood's center peak is repeated in the top of the dash, while the center touchscreen is framed in a shape reminiscent the grille's outline. The interior ambience is expertly crafted and comfortable.

My test 2018 Cadillac CT6 came in AWD Platinum trim, powered by the 404-horsepower, 3.0-liter twin-turbo V-6. It handles on a par with most European and Asian luxury sedans, delivering more than ample power from its twin-turbo V-6. The engine hustles from 0-to-60 mph in 5.3 seconds and provides passing power at virtually any speed.

The electric steering is smooth and responsive in all modes, working with suspension componentry that can feel somewhat stiff. Regardless of the driving mode selected, from Tour to Sport, the CT6 always delivers a firm and stable ride quality.

Magnetic dampers and active rear steering are optional with the Active Chassis package on lower trim levels. The 3.5 degrees of rear-wheel steering render parking lots friendlier, but keep in mind that the CT6 is still a long, large car in spite its athleticism.

The flagship Cadillac is definitely no longer the old land yacht "Caddy" of yesterday, but is rather a solid and impressively agile executive class luxury sedan with power to spare, even in the base model.

For those seeking an American luxury performance sedan your search may be over. It should definitely be seen in person to be properly appreciated. Pricing for the 2018 CT6 starts at $54,095 and ranges up to $88,295.

Specifications

Base price $88,295 (as tested: $89,290)
Curb weight 4,399 lbs.
Displacement 3.0-liter
Engine type 24-valve twin-turbo V-6 w/DI
Epa mileage rating 18 mpg city, 26 mpg highway
Fuel capacity 19.6 gal.
Horsepower (net) 404 at 5700 rpm
Overall length 204.1 in.
Torque (lb.-ft.) 400 at 2500 rpm
Transmission 8-speed automatic
Vehicle type 5-passenger full-size RWD sedan
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