INFINITI Q40 vs. Lexus IS 250
iSeeCars' unbiased and data-driven comparison of the INFINITI Q40 and Lexus IS 250 contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the INFINITI Q40 and the Lexus IS 250.
When comparing the INFINITI Q40's and the Lexus IS 250's specifications and ratings, the INFINITI Q40 has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, interior volume and base engine power. The Lexus IS 250 has the advantage in the area of fuel efficiency. Based on this comparison of the INFINITI Q40's and the Lexus IS 250's specifications and ratings, the INFINITI Q40 is a better car than the Lexus IS 250.
Pricing: A used 2015 INFINITI Q40 ranges from $8,994 to $18,997 while a used 2015 Lexus IS 250 is priced between $14,422 to $24,727.
Engine Power and Fuel Efficiency Comparison: For engine performance, the INFINITI Q40’s base engine makes 328 horsepower, and the Lexus IS 250 base engine makes 204 horsepower. The Q40 is rated to deliver an average of 22 miles per gallon, with a highway range of 540 miles. The IS 250 is rated to deliver an average of 24 miles per gallon, with a highway range of 522 miles.This gives the Lexus IS 250 the advantage in fuel efficiency and the INFINITI Q40 the advantage in maximum range. Both models use gasoline.
Passenger Space Comparison: The INFINITI Q40 has the advantage of offering more interior volume, reflected in more front head room, rear head room, rear shoulder room and rear leg room. The Lexus IS 250 has the advantage in the areas of front shoulder room, front leg room and cargo space.
New Car Pricing
Asking Price:
-
Starting MSRP:
$33,950
Category Avg Starting MSRP:
N/A
Category Starting MSRP Range:
N/A
New Car Pricing
Asking Price:
-
Starting MSRP:
$36,550
Category Avg Starting MSRP:
(Luxury Compact Cars)
$38,801
Category Starting MSRP Range:
(Luxury Compact Cars)
$21,065 - $62,000
Used Car Pricing
Avg Used Car Price:
$14,197
Price Range:
$8,994 - $18,997
Category Avg Price:
N/A
Category Avg Price Range:
N/A
# Used Cars for Sale Nationally:
44
Avg Mileage of Used Cars for Sale:
100,336
# Good or Great Deals:
13
Used Car Pricing
Avg Used Car Price:
$19,316
Price Range:
$14,422 - $24,727
Category Avg Price:
(Luxury Compact Cars)
$17,656
Category Avg Price Range:
(Luxury Compact Cars)
$11,301 - $37,852
# Used Cars for Sale Nationally:
159
Avg Mileage of Used Cars for Sale:
96,984
# Good or Great Deals:
52
INFINITI Q40 Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
Lexus IS 250 Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
iSeeCars Reliability Insights for INFINITI Q40
Remaining Life Expectancy (years):
0.9
Typical Category Remaining Life Expectancy:
N/A
Category Remaining Life Expectancy Range:
N/A
Chance of Reaching 200k Miles for a New Car:
3.1%
iSeeCars Reliability Insights for Lexus IS 250
Remaining Life Expectancy (years):
3.7
Typical Category Remaining Life Expectancy:
(Luxury Compact Cars)
2.1
Category Remaining Life Expectancy Range:
(Luxury Compact Cars)
0.5 - 5.4
Chance of Reaching 200k Miles for a New Car:
47.4%
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1
Typical Category Recalls:
N/A
Category Range for Recalls:
N/A
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
0.8
Typical Category Recalls:
(Luxury Compact Cars)
3.2
Category Range for Recalls:
(Luxury Compact Cars)
0.8 - 27.2
INFINITI Q40 Rankings
Not yet available
Lexus IS 250 Rankings
Available Body Styles
Sedan
Available Body Styles
Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
INFINITI Q40 Trim Levels
Base
Lexus IS 250 Trim Levels
Base, Crafted Line
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 60000 miles
Warranty, Powertrain:
6 years / 70000 miles
Warranty, Roadside Assistance:
4 years
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
6 years / 70000 miles
Warranty, Roadside Assistance:
4 years
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
5 out of 5 Stars
2025 NHTSA Front Crash Overall Rating:
Not yet available
2025 NHTSA Side Crash Overall Rating:
Not yet available
2025 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
5 out of 5 Stars
2025 NHTSA Front Crash Overall Rating:
4 out of 5 Stars
2025 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
328 hp @ 7000 rpm
Torque:
269 foot-lbs @ 5200 rpm
Power-to-Weight Ratio (higher is better):
0.091 hp per pound
Base Drivetrain Specs
Horsepower:
204 hp @ 6400 rpm
Torque:
185 foot-lbs @ 4800 rpm
Power-to-Weight Ratio (higher is better):
0.059 hp per pound
Engine Specifications
Engine Size:
3.7 liters
Engine Configuration:
V
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
19 / 27 / 22
Range (city/hwy):
380 / 540 miles
Recommended Fuel Type:
Gasoline
Engine Specifications
Engine Size:
2.5 liters
Engine Configuration:
V
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
21 / 30 / 24
Range (city/hwy):
365 / 522 miles
Recommended Fuel Type:
Gasoline
Standard/Optional Features
Alloy wheels:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Power outlet:
Standard
Satellite radio:
Standard
Navigation System:
Available
Sunroof/Moonroof:
Available
Voice Recognition:
Available
Adaptive Cruise Control:
N/A
Air Suspension:
N/A
Android Auto:
N/A
Apple CarPlay:
N/A
Automatic Parking:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
N/A
Front Bench Seats:
N/A
Heated Steering Wheel:
N/A
Internet Radio:
N/A
Massage Seats:
N/A
Paddle Shifters:
N/A
Panoramic Sunroof/Moonroof
N/A
Parking Sensors:
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roadside assistance:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Standard/Optional Features
Alloy wheels:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Available
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Power outlet:
Standard
Satellite radio:
Standard
Navigation System:
Available
Sunroof/Moonroof:
Standard
Voice Recognition:
Standard
Adaptive Cruise Control:
Available
Air Suspension:
N/A
Android Auto:
N/A
Apple CarPlay:
N/A
Automatic Parking:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
Available
Front Bench Seats:
N/A
Heated Steering Wheel:
Available
Internet Radio:
N/A
Massage Seats:
N/A
Paddle Shifters:
Standard
Panoramic Sunroof/Moonroof
N/A
Parking Sensors:
Available
Power Lift Gate:
N/A
Quad Seats:
N/A
Roadside assistance:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Safety Features
Backup camera:
Standard
Lane Departure Warning:
Available
360-Degree Camera:
N/A
Blind Spot Monitoring:
N/A
Driver Attention Monitoring:
N/A
Forward Collision Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
N/A
Lane Departure Warning:
N/A
360-Degree Camera:
N/A
Blind Spot Monitoring:
N/A
Driver Attention Monitoring:
N/A
Forward Collision Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
40.5 inches
Front Leg Room:
43.9 inches
Front Shoulder Room:
55.6 inches
Rear Head Room:
37.7 inches
Rear Leg Room:
34.7 inches
Rear Shoulder Room:
55.2 inches
Cargo Space:
13.5 cubic feet
Overall Interior Volume:
99.0 cubic feet
Interior Dimensions
Front Head Room:
38.2 inches
Front Leg Room:
44.8 inches
Front Shoulder Room:
55.9 inches
Rear Head Room:
36.9 inches
Rear Leg Room:
32.2 inches
Rear Shoulder Room:
53.4 inches
Cargo Space:
13.8 cubic feet
Overall Interior Volume:
90.2 cubic feet
Exterior Dimensions
Curb Weight:
3624 lbs
Width:
69.8 inches
Height:
57.2 inches
Length:
187.9 inches
Wheelbase:
112.2 inches
Ground Clearance:
5.1 inches
Exterior Dimensions
Curb Weight:
3461 lbs
Width:
79.8 inches
Height:
56.3 inches
Length:
183.7 inches
Wheelbase:
110.2 inches
Ground Clearance:
5.3 inches
Standard Wheel/Tire Information
Wheel Size:
17.0 x 7.5 inches
Wheel Type:
aluminum alloy
Tire Size:
P225/55R17
Standard Wheel/Tire Information
Wheel Size:
17.0 x 7.5 inches
Wheel Type:
aluminum alloy
Tire Size:
P225/45R17
Exterior Colors
Black
Black Obsidian
Gray
Graphite Shadow
Silver
Liquid Platinum
White
Moonlight White
Blue
Not available
Red
Not available
Exterior Colors
Black
Obsidian
Gray
Nebula Gray Pearl
Silver
Atomic Silver / Silver Lining Metallic
White
Starfire Pearl / Ultra White
Blue
Deep Sea Mica
Red
Matador Red Mica
Interior Colors
Black
Graphite
Gray
Stone
Beige
Not available
Purple
Not available
Interior Colors
Black
Black / Black w/ Matte Black trim / Black w/ Silver Performance trim
Gray
Stratus Gray / Stratus Gray w/ Matte Black trim / Stratus Gray w/ Silver Performance trim
Beige
Flaxen / Parchment
Purple
Rioja Red
