As witnessed with the ATS and CTS, Cadillac has continued to evolve the concept of the sport sedan. With the CT6, it has crafted a stately, plush, large sedan with engaging driving dynamics. Aim the CT6’s sharp steering toward a curve and this big sedan seems to shrink in size, carving up twisty roads with confidence. And yet the supple and composed ride befits a flagship.

The midlevel 3.6-liter V6 delivers ample power in a nonchalant fashion, pushing the CT6 to 60 mph in 6.5 seconds. Other engine choices include a 265-hp turbo four-cylinder and a 404-hp twin-turbo V6, all mated to a smooth and responsive eight-speed automatic.

Inside, the CT6 has a tasteful mix of supple leather and well-crafted trim. It’s easy to find comfort in the big, nicely padded front seats, thanks to the wide range of adjustments. The huge rear seat is a cinch to access, but the short bottom cushion compromises posture.

Cadillac has made some improvements to the Cue infotainment system, but the dashboard is still shy on easy-to-use buttons and knobs. The low-mounted dashboard vents compromise air distribution and tend to freeze your elbows.

Commendably, forward-collision warning, low-speed automatic braking, and blind-spot monitoring are standard on all versions of the CT6 except the Base trim.

The CT6’s superb road-test score proves that it’s worthy of Cadillac’s old slogan, “Standard of the world.”

Read the complete Cadillac CT6 road test.

2016 Cadillac CT6 Review

HIGHS: Agility, ride, braking, quietness, seat comfort, interior room, fit and finish
LOWS: Some controls, low dash vents, scant in-cabin storage
POWERTRAIN: 335-hp, 3.6-liter V6 engine; 8-speed automatic transmission; all-wheel drive
FUEL: 22 mpg

Editor's Note: This article also appeared in the December 2016 issue of Consumer Reports magazine.