Cadillac CT6 Dimensions & Size

How much cargo space and room does a 2020 Cadillac CT6 really have?

The 2020 Cadillac CT6 measures 205.9 in long, 74 in wide, 57.9 in tall, on a 122.4 in wheelbase, with a curb weight of about 4,489 lbs.

Looking for weight? See the Cadillac CT6 curb weight page — this page covers length, width, height and wheelbase.

Latest model year (2020):

The Cadillac CT6 measures 205.9 in long, 74 in wide and 57.9 in tall, on a 122.4 in wheelbase, weighing about 4,489 lbs.

VerifiedNHTSA Canadian Vehicle Specifications · Verified September 18, 2026

Overview MPG Engine Specs Fuel Cost Transmission Drivetrain Vehicle Class Maintenance Dimensions Curb Weight EV Range

Cadillac CT6 Dimensions — All Years

Year	Body / Variant	Length	Width	Height	Wheelbase	Curb Weight
2020Config 1 of 4	CT6 V-SERIES AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	4,489 lbs
2020Config 2 of 4	CT6 PREMIUM LUXURY AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	4,129 lbs
2020Config 3 of 4	CT6 PLATINUM AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	4,217 lbs
2020Config 4 of 4	CT6 LUXURY AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	3,986 lbs
2019Config 1 of 4	CT6 SPORT AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	4,427 lbs
2019Config 2 of 4	CT6 PREMIUM LUXURY AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	4,129 lbs
2019Config 3 of 4	CT6 PLATINUM AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	4,217 lbs
2019Config 4 of 4	CT6 LUXURY AWD 4DR SEDAN	205.9 in	74 in	57.9 in	122.4 in	3,986 lbs
2018Config 1 of 5	CT6 3.6L AWD PLATINUM 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,262 lbs
2018Config 2 of 5	CT6 3.6L AWD 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	3,924 lbs
2018Config 3 of 5	CT6 3.0L TWIN TURBO AWD PLATINUM 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,385 lbs
2018Config 4 of 5	CT6 3.0L TWIN TURBO AWD 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,165 lbs
2018Config 5 of 5	CT6 2.0L 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	3,646 lbs
2017Config 1 of 5	CT6 3.6L AWD PLATINUM 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,262 lbs
2017Config 2 of 5	CT6 3.6L AWD 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	3,924 lbs
2017Config 3 of 5	CT6 3.0L TWIN TURBO AWD PLATINUM 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,385 lbs
2017Config 4 of 5	CT6 3.0L TWIN TURBO AWD 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,165 lbs
2017Config 5 of 5	CT6 2.0L 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	3,646 lbs
2016Config 1 of 5	CT6 3.6L AWD PLATINUM 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,262 lbs
2016Config 2 of 5	CT6 3.6L AWD 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	3,924 lbs
2016Config 3 of 5	CT6 3.0L TWIN TURBO AWD PLATINUM 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,385 lbs
2016Config 4 of 5	CT6 3.0L TWIN TURBO AWD 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	4,165 lbs
2016Config 5 of 5	CT6 2.0L 4DR SEDAN	203.9 in	74 in	57.9 in	122 in	3,646 lbs

Dimensions sourced from the NHTSA Canadian Vehicle Specifications database. Figures are measured per body style and can vary slightly by trim, wheel package, and suspension.

Cadillac CT6 data analysis

How Cadillac CT6 overall length varies

Across 23 configurations recorded for the 2016 through 2020 Cadillac CT6, overall length runs from 204 inches to 206 inches. The strongest figure belongs to the 2019 Cadillac CT6 (CT6 LUXURY AWD 4DR SEDAN) at 206 inches, and the weakest to the 2018 car (CT6 3.6L AWD PLATINUM 4DR SEDAN) at 204 inches — a spread of 1%. The narrow spread means any year of the Cadillac CT6 in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2020

Average overall length for the 2020 Cadillac CT6 is 206 inches, against 206 inches for the 2019 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Cadillac CT6 data

This page lists every 2016 through 2020 Cadillac CT6 record we hold for this measurement — 23 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Cadillac CT6 numbers

The 2016 through 2020 Cadillac CT6 entries here cover variants including CT6 V-SERIES AWD 4DR SEDAN, CT6 PREMIUM LUXURY AWD 4DR SEDAN, CT6 PLATINUM AWD 4DR SEDAN, CT6 LUXURY AWD 4DR SEDAN, CT6 SPORT AWD 4DR SEDAN, CT6 3.6L AWD PLATINUM 4DR SEDAN, CT6 3.6L AWD 4DR SEDAN and CT6 3.0L TWIN TURBO AWD PLATINUM 4DR SEDAN. 2018 is the busiest model year in the record with 5 separate measured configurations, which is why a single quoted overall length figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Cadillac CT6 figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Cadillac CT6 record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Will the Cadillac CT6 fit your garage and parking space?

Measured against a standard single garage door (8 ft wide, 7 ft tall, 20 ft deep stall) and a standard US surface parking space (9 ft x 18 ft). Measure your own opening before buying — older garages are frequently narrower.

Garage door width

Fits

74 in wide (body only, mirrors folded) — about 22 in of total clearance, so roughly 11 in per side.

Garage door height

Clears

57.9 in tall — 26.1 in of headroom before roof rails, antennas, or a roof box are added.

Parking space

Fits a standard stall

205.9 in long leaves 10.1 in to spare in an 18 ft space, and 34 in of side clearance in a 9 ft one.

Size drift: the 2020 Cadillac CT6 is 2 in longer than the 2016 car in our records. If you are replacing an older example with a newer one, check the garage clearance again rather than assuming the outgoing car's footprint carries over.

Its wheelbase (122.4 in) accounts for about 59% of overall length. A higher share generally means shorter overhangs — better approach and departure clearance on driveways and ramps, and more cabin space for the same parking footprint.

Want to see it against another vehicle at the same scale? Open the car size comparison tool or check the Cadillac CT6 curb weight to pair footprint with mass.

Frequently Asked Questions About CT6 Dimensions

How long is the Cadillac CT6?

The Cadillac CT6 is 205.906 inches long, 74.0157 inches wide and 57.874 inches tall. That is roughly 17.2 feet — compare it with your garage depth before buying.

Will the Cadillac CT6 fit in a standard garage?

A standard single-car garage is about 20 feet (240 in) deep and 10 feet (120 in) wide. At 205.906 in long and 74.0157 in wide, the Cadillac CT6 fits with 34 in of room to spare front-to-back. Remember to allow for mirrors and door swing.

How much does the Cadillac CT6 weigh?

Curb weight for the Cadillac CT6 is about 4,489 lbs. Curb weight excludes passengers and cargo, so add roughly 150 lbs per occupant when calculating payload.