VS
At a Glance
Power
290hp @ 6200
311hp @ 6600
Torque
267lb-ft @ 4500
280lb-ft @ 4800
Fuel
24 mpg est.
23 mpg est.
Engine
3.5 L/212ci
3.5 L/211ci
Choosing between the Acura Tlx and the Lexus IS is one of the most common decisions car buyers in the United States face. The Acura Tlx delivers 290hp @ 6200 while the Lexus IS produces 311hp @ 6600. On fuel, the Tlx returns 24 mpg est. while the IS uses 23 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $48,950 for the Tlx and $45,500 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.
Specification
Acura Tlx3.5L SH-AWD PMC Edition 2020 - From $48,950
Lexus ISIS 350 F SPORT Design RWD 2026 - From $45,500
Performance
Power Output (hp)
290hp @ 6200
311hp @ 6600
Torque (lb-ft)
267lb-ft @ 4500
280lb-ft @ 4800
Engine & Drivetrain
Engine Capacity
3.5 L/212ci
3.5 L/211ci
Engine Layout
V
V
Cylinders
6
6
Fuel Type
Gasoline
Gasoline
Transmission
Automatic w/OD
Automatic w/OD
Number of Gears
—
8
Drive Wheels
All Wheel
Rear Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
24 mpg est.
23 mpg est.
Fuel Economy - City (mpg)
20mpg
19 (Est)mpg
Fuel Economy - Highway (mpg)
29mpg
27 (Est)mpg
Fuel Tank Capacity (gal)
17.2gal
17.4gal
Dimensions
Length (in)
190.7in
185.4in
Width (in)
73in
72.4in
Height (in)
57in
56.5in
Wheelbase (in)
109.3in
110.2in
Curb Weight (lbs)
3812lbs
3913lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ 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
2 / 4 categories
Performance
IS
Fuel Economy
Tlx
Value
IS
Practicality
Tied
Pros & Cons
Acura Tlx
Better fuel economy (24 mpg est.)
Higher starting price
Lexus IS
Lower starting price ($45,500)
Higher fuel consumption (23 mpg est.)
Frequently Asked Questions
Which is more fuel efficient, the Tlx or IS?
The Tlx gets 24 mpg est. and the IS gets 23 mpg est. on the combined cycle. The Tlx is the more fuel-efficient choice. In real-world conditions with a mix of highway and urban driving, actual figures will be slightly higher.
Which has more power, the Tlx or IS?
The Tlx produces 290hp @ 6200 and 267lb-ft @ 4500 of torque while the IS delivers 311hp @ 6600 and 280lb-ft @ 4800 of torque. The IS is the more powerful option.
What is the price difference between the Tlx and IS?
The Tlx starts from $48,950 and the IS from $45,500. The IS is cheaper by $3,450 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the Tlx 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