VS
At a Glance
Power
237hp @ 5000
311hp @ 6600
Torque
258lb-ft @ 1500-4000
280lb-ft @ 4800
Engine
—
3.5 L/211cc
Choosing between the Cadillac Ct5 and the Lexus IS is one of the most common decisions car buyers in the United States face. The Cadillac Ct5 delivers 237hp @ 5000 while the Lexus IS produces 311hp @ 6600. Pricing starts at $49,200 for the Ct5 and $47,950 for the IS. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Performance
Power Output (hp)
237hp @ 5000
311hp @ 6600
Torque (lb-ft)
258lb-ft @ 1500-4000
280lb-ft @ 4800
Engine & Drivetrain
Engine Capacity
—
3.5 L/211cc
Engine Layout
V
V
Cylinders
6
6
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
—
8
Drive Wheels
Rear Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy - City (mpg)
22mpg
19 (Est)mpg
Fuel Economy - Highway (mpg)
31mpg
27 (Est)mpg
Fuel Tank Capacity (gal)
17.4gal
17.4gal
Dimensions
Length (in)
193.8in
185.4in
Width (in)
74.1in
72.4in
Height (in)
57.2in
56.5in
Wheelbase (in)
116in
110.2in
Curb Weight (lbs)
3663lbs
3913lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
—
✓ Standard
Traction Control
—
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Sunroof
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Lexus IS
1 / 4 categories
Performance
Tied
Fuel Economy
Tied
Value
IS
Practicality
Tied
Pros & Cons
Cadillac Ct5
Well-rounded specification
Higher starting price
Lexus IS
Lower starting price ($47,950)
Few notable weaknesses
Frequently Asked Questions
Which has more power, the Ct5 or IS?
The Ct5 produces 237hp @ 5000 and 258lb-ft @ 1500-4000 of torque while the IS delivers 311hp @ 6600 and 280lb-ft @ 4800 of torque. They produce similar power outputs.
What is the price difference between the Ct5 and IS?
The Ct5 starts from $49,200 and the IS from $47,950. The IS is cheaper by $1,250 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the Ct5 or the IS?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.
Also Consider