2021 Cadillac CT4 vs 2021 Lexus IS

2021 Cadillac CT4

#7 in Luxury Small Sedans

2021 Lexus IS

#7 in Luxury Small Sedans

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4-Door Sedan Luxury

Style	MPG City	MPG Hwy	Invoice	MSRP
CT4 4-Door Sedan Luxury	23	34	$31,725	$33,395
CT4 4-Door Sedan Premium Luxury	23	34	$35,715	$37,595
CT4 4-Door Sedan Sport	23	34	$36,760	$38,695
CT4 4-Door Sedan V-Series	20	29	$42,650	$44,895

Select style

IS 300 AWD

Style	MPG City	MPG Hwy	Invoice	MSRP
IS IS 300 AWD	19	26	$38,178	$41,050
IS IS 300 RWD	21	31	$36,318	$39,050
IS IS 350 F SPORT AWD	19	26	$41,805	$44,950
IS IS 350 F SPORT RWD	20	28	$39,945	$42,950

Show Only Differences

Pricing

Invoice Price

$31,725

$38,178

Manufacturer Suggested Retail Price

$33,395

$41,050

Monthly Payment Estimate

$557 / month

$684 / month

The Car Connection's Take

TCC Rating

6.2

Read Our Full Review

6.2

Read Our Full Review

TCC’s Bottom Line

The 2021 Cadillac CT4 is well-equipped and fun to drive, making it a good small sedan choice.

The 2021 Lexus IS doesn’t gain any ground on the more performance-oriented compact sedans, but it’s priced right.

TCC Likes

Good tech
Slick turbo engines
Strong 10-speed automatic gearbox

Improved infotainment access
Sporty steering and handling
Good standard features

TCC Dislikes

Interior doesn’t wow
Tight back seat
Might look too conservative

AWD hump in driver’s footwell
Competition does it better
Recycled powertrains

Fuel Economy

City

23 mpg

19 mpg

Highway

34 mpg

26 mpg

Vehicle

Number of Passenger Doors

EPA Classification

Compact Cars

Interior Dimensions

Second Hip Room (in)

52.5

Front Shoulder Room (in)

55.2

55.9

Passenger Volume (ft³)

- TBD -

90.2

Second Head Room (in)

36.5

36.9

Second Shoulder Room (in)

53.9

53.4

Front Leg Room (in)

42.4

44.8

Passenger Capacity

Front Hip Room (in)

54.3

Second Leg Room (in)

33.4

32.2

Front Head Room (in)

38.3

38.2

Exterior Dimensions

Track Width, Front (in)

60.3

62.2

Min Ground Clearance (in)

5.5

Length, Overall (in)

187.2

185.4

Height, Overall (in)

56.7

Track Width, Rear (in)

61.7

Wheelbase (in)

109.3

110.2

Liftover Height (in)

Width, Max w/o mirrors (in)

71.4

72.4

Cargo Area Dimensions

Trunk Volume (ft³)

10.7

10.8

Brakes

Drum - Rear (Yes or )

Brake ABS System

4-Wheel

Disc - Rear (Yes or )

Yes

Rear Brake Rotor Diam x Thickness (in)

12.4 x 0.9

11.7

Brake Type

Pwr

4-Wheel Disc

Rear Drum Diam x Width (in)

Disc - Front (Yes or )

Yes

Front Brake Rotor Diam x Thickness (in)

11.8 x 1.0

13.2

Fuel Tank

Fuel Tank Capacity, Approx (gal)

17.4

Steering

Steering Ratio (:1), Overall

Turning Diameter - Curb to Curb (ft)

35.4

Steering Type

Electric Rack & Pinion

Rack-Pinion

Lock to Lock Turns (Steering)

Turning Diameter - Wall to Wall (ft)

Tires

Rear Tire Order Code

Q5O

Front Tire Size

P225/45R17

P235/45VR18

Spare Tire Size

Compact

Front Tire Order Code

Q5O

Spare Tire Order Code

Rear Tire Size

P225/45R17

P235/45VR18

Trailering

Dead Weight Hitch - Max Tongue Wt. (lbs)

Wt Distributing Hitch - Max Tongue Wt. (lbs)

Dead Weight Hitch - Max Trailer Wt. (lbs)

Wt Distributing Hitch - Max Trailer Wt. (lbs)

Weight Information

Base Curb Weight (lbs)

3422

3847

Wheels

Front Wheel Size (in)

17 x 8

18 X 8.5

Spare Wheel Size (in)

Compact

Rear Wheel Material

Aluminum

Rear Wheel Size (in)

17 x 8

18 X 8.5

Front Wheel Material

Aluminum

Spare Wheel Material

Steel

Cooling System

Total Cooling System Capacity (qts)

Electrical

Cold Cranking Amps @ 0° F (Primary)

Maximum Alternator Capacity (amps)

Engine

SAE Net Torque @ RPM

258 @ 1500-4000

236 @ 2000

Engine Order Code

LSY

Displacement

2.0L/- TBD -

3.5 L/211

SAE Net Horsepower @ RPM

237 @ 5000

260 @ 6600

Engine Type

Turbocharged I4

Premium Unleaded V-6

Fuel System

Direct Injection

Port/Direct Injection

Mileage

EPA Fuel Economy Est - Hwy (MPG)

EPA Fuel Economy Est - City (MPG)

Fuel Economy Est-Combined (MPG)

Transmission

Clutch Size (in)

- TBD -

Third Gear Ratio (:1)

2.06

1.40

Trans Type

Drivetrain

Rear Wheel Drive

All Wheel Drive

Fifth Gear Ratio (:1)

1.26

0.71

Trans Description Cont. Again

Reverse Ratio (:1)

3.93

3.17

Eighth Gear Ratio (:1)

0.66

Second Gear Ratio (:1)

3.04

2.04

Trans Order Code

M5N

Final Drive Axle Ratio (:1)

2.85

3.77

Fourth Gear Ratio (:1)

1.66

1.00

Trans Description Cont.

Automatic

Automatic w/OD

Sixth Gear Ratio (:1)

1.00

0.58

First Gear Ratio (:1)

4.61

3.52

Seventh Gear Ratio (:1)

0.85

Summary

Vehicle Name

Cadillac CT4

Lexus IS

Body Style

Sedan

Suspension

Shock Absorber Diameter - Front (mm)

Stabilizer Bar Diameter - Front (in)

Suspension Type - Rear

Five-Link

Multi-Link

Suspension Type - Rear (Cont.)

w/Coil Springs

Multi-Link

Shock Absorber Diameter - Rear (mm)

Suspension Type - Front

MacPherson Strut

Double Wishbone

Stabilizer Bar Diameter - Rear (in)

Suspension Type - Front (Cont.)

Double Wishbone

Emissions

Tons/yr of CO2 Emissions @ 15K mi/year

6.5

8.0

Crash Test Ratings

Overall Rating

Overall Frontal Barrier Crash Rating

Frontal Barrier Crash Rating Driver

Frontal Barrier Crash Rating Passenger

Overall Side Crash Rating

Side Barrier Rating

Side Barrier Rating Driver

Side Barrier Rating Passenger Rear Seat

Side Pole Rating Driver Front Seat

Combined Side Rating Front Seat

Combined Side Rating Rear Seat

Rollover Rating

2021 Cadillac CT4

2021 CT4 selection robust; 2020s sold out
Lease: From $329 for 36 months
Rebates: Up to $3,250 off 2021s
Finance: From 0.9% APR for 72 months + up to $1,750 bonus

Get Your Price

2021 Lexus IS

2021 Lexus IS available now
Lease: From $359 for 36 months
Rebate: Up to $1,500 cash
Finance: From 1.9% APR for 60 months

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