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Compare 2015 Infiniti Q40 vs 2015 Lexus IS

2015 Infiniti Q40 Change
2015 Lexus IS Change
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Selected Style 4-Door Sedan RWD
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Body Style


Style MPG City MPG Hwy Invoice MSRP
4-Door Sedan RWD 19 27 $31,574 $33,950
4-Door Sedan AWD 18 25 $33,061 $35,550
2015 Lexus IS
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Body Style




Style MPG City MPG Hwy Invoice MSRP
250 4-Door Sport Sedan RWD 21 30 $33,993 $36,550
250 4-Door Sport Sedan AWD 20 27 $36,350 $39,085
250 4-Door Sport Sedan RWD Crafted Line 21 30 $38,614 $41,440
250 4-Door Sport Sedan AWD Crafted Line 20 27 $40,707 $43,690
350 4-Door Sedan RWD 19 28 $37,260 $40,065
350 4-Door Sedan AWD 19 26 $39,339 $42,300
250C 2-Door Convertible 21 30 $40,325 $43,360
350C 2-Door Convertible 19 27 $44,305 $47,640
Invoice Price
Manufacturer Suggested Retail Price
Monthly Payment Estimate
$566 / month
$0 / month
Dealer Price Quotes
The Car Connection's Take
TCC Rating
/ 10
TCC Rating
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or “Go” (green) messages along with the numerical score so you can easily understand where we stand at a glance.

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Read Our Full Review
/ 10
TCC Rating
Read Our Full Review
TCC's Bottom Line The 2015 Infiniti Q40 is, literally, last year's model. Alongside the new Q50 it offers a compelling, more vivid driving experience -- albeit with far less refinement. The 2015 Lexus IS offers a good blend of comfort, style, technology, and driving dynamics.
TCC Likes
TCC Dislikes
Fuel Economy
Fuel Economy - City 19 mpg N/A mpg
Fuel Economy - Highway 27 mpg N/A mpg
EPA Classification Mid-Size Cars
Interior Dimensions
Second Leg Room (in) 34.7
Front Head Room (in) 40.5
Passenger Capacity 5
Second Hip Room (in) 53.7
Front Shoulder Room (in) 55.6
Second Head Room (in) 37.7
Second Shoulder Room (in) 55.2
Front Leg Room (in) 43.9
Passenger Volume (ft³) 99
Front Hip Room (in) 55.1
Exterior Dimensions
Width, Max w/o mirrors (in) 69.8
Track Width, Front (in) 59.8
Min Ground Clearance (in) 5.1
Length, Overall (in) 187.9
Height, Overall (in) 57.2
Track Width, Rear (in) 60.2
Wheelbase (in) 112.2
Cargo Area Dimensions
Trunk Volume (ft³) 13.5
Front Brake Rotor Diam x Thickness (in) 12.6
Drum - Rear (Yes or ) NA
Brake ABS System 4-Wheel
Disc - Rear (Yes or ) Yes
Rear Brake Rotor Diam x Thickness (in) 12.1
Rear Drum Diam x Width (in) NA
Disc - Front (Yes or ) Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal) 20
Steering Type Rack-Pinion
Turning Diameter - Curb to Curb (ft) 35.4
Spare Tire Size Compact
Front Tire Order Code NA
Spare Tire Order Code NA
Rear Tire Size P225/55VR17
Rear Tire Order Code NA
Front Tire Size P225/55VR17
Weight Information
Base Curb Weight (lbs) 3624
Rear Wheel Material Aluminum
Rear Wheel Size (in) 17 X 7.5
Front Wheel Material Aluminum
Spare Wheel Material Steel
Front Wheel Size (in) 17 X 7.5
Spare Wheel Size (in) Compact
Maximum Alternator Capacity (amps) 130
Displacement 3.7 L/226
SAE Net Horsepower @ RPM 328 @ 7000
Engine Type Premium Unleaded V-6
Fuel System Sequential MPI
SAE Net Torque @ RPM 269 @ 5200
Engine Order Code NA
Fuel Economy Est-Combined (MPG) 22
EPA Fuel Economy Est - Hwy (MPG) 27
EPA Fuel Economy Est - City (MPG) 19
Drivetrain Rear Wheel Drive
Fifth Gear Ratio (:1) 1.00
Trans Description Cont. Again NA
Reverse Ratio (:1) 3.97
Second Gear Ratio (:1) 3.19
Trans Order Code NA
Fourth Gear Ratio (:1) 1.41
Trans Description Cont. Automatic w/OD
Seventh Gear Ratio (:1) 0.77
Sixth Gear Ratio (:1) 0.86
First Gear Ratio (:1) 4.92
Final Drive Axle Ratio (:1) 3.36
Third Gear Ratio (:1) 2.04
Trans Type 7
Body Style Sedan
Vehicle Name Infiniti Q40
Suspension Type - Rear Multi-Link
Suspension Type - Rear (Cont.) Multi-Link
Suspension Type - Front Double Wishbone
Suspension Type - Front (Cont.) Double Wishbone
Tons/yr of CO2 Emissions @ 15K mi/year 8.0 (Est)
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
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