Auto Guide
2020 Cadillac CT6
Used

Review and specifications

2020 Cadillac CT6

Cadillac's new flagship fits above the CTS and below the BMW 7 Series and Mercedes-Benz S-Class. But it's priced to compete against the luxury midsized crowd. This large sedan possesses some athletic chops and has a steady, controlled ride and a very quiet interior. Most buyers will opt for the mid-level nonturbo V6, while the top trim carries a 404-hp twin-turbocharged V6. The eight-speed automatic is smooth and responsive. All-wheel drive comes standard with the V6s. The interior is posh and roomy, but cabin storage is a bit scant. Despite improvements, the updated CUE infotainment touch screen is still unintuitive.

Market value
$37,688
Fuel
Conventional
Transmission
Automatic
Seats
5
View listings Find dealers
Model year 2020
Owner rating Not rated
Reliability Not rated
Data updated December 4, 2025

At a glance

Model data

Overview

Powertrain
Conventional
Body style
sedan
Drive type
AWD
Transmission
Automatic, 10-speed
Category
Luxury midsized cars
Generation began
2016

Pricing

Current retail median
$37,688
Retail value range
$23,750 - $45,675
Original MSRP range
$58,995 - $96,495
Trade-in range
$21,335 - $43,040

Ratings

Road test score
95/100

Fuel economy

EPA city
18 MPG
EPA highway
27 MPG
EPA combined
22 MPG
Tested city
14 MPG
Tested highway
34 MPG
Tested overall
22 MPG
Annual fuel cost
$1,780
Cruising range
420 miles

Road tests

0-30 mph
2.5 sec
0-60 mph
6.5 sec
60-0 mph braking
125 ft
Avoidance speed
52 mph
Test status
Test Completed

Dimensions

Length
204 in
Width
74 in
Height
58 in
Wheelbase
122 in
Weight
4,040 lb
Maximum load
910 lb
Towing capacity
1,000 lb

Interior

Seating
5 people
Front head room
4.5 in
Front leg room
44 in
Rear head room
3.5 in
Rear leg room
31 in
Luggage
3+2+0

Environmental impact

Air pollution score
5/10
Greenhouse gas score
4/10
SmartWay
No

Brand context

About Cadillac

Cadillac is primarily a luxury brand, selling quieter and higher-tech variants of Chevrolet vehicles. Its SUV line spans from compact options up to the enormous Escalade. Several boldly designed EV models have excellent range, quick acceleration, and fast charging speeds. There’s also the V-Series, a line of performance versions available for several vehicles, which can compete with the best sports sedans from Europe. Most models are available with excellent driver assistance tech, including GM’s Super Cruise. New car reliability across the brand is average. Several new models are Consumer Reports recommended for their interior quality, comfort, and fit and finish. We also recommend some of the brand’s used models.

Vehicle ID: 15251 First published: July 22, 2020 Updated: December 4, 2025

Values may vary by trim, options, location, and market conditions.

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