Audi A4 vs. Infiniti Q50
iSeeCars' unbiased and data-driven comparison of the Audi A4 and Infiniti Q50 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 Audi A4 and the Infiniti Q50.
When comparing the Audi A4's and the Infiniti Q50's specifications and ratings, the Audi A4 has the advantage in the areas of new vehicle base pricing, fuel efficiency, resale value and overall quality score. The Infiniti Q50 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 Audi A4 and Infiniti Q50 have the same Based on this comparison of the Audi A4's and the Infiniti Q50's specifications and ratings, the Audi A4 is a better car than the Infiniti Q50.
Pricing: A used 2025 Audi A4 ranges from $35,291 to $47,907 while a used 2024 Infiniti Q50 is priced between $32,491 to $50,065. For a new model, the Audi A4's price is between $43,191 and $53,047, with the Infiniti Q50 priced between $44,150 and $62,810.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Audi A4 loses 55 percent of its value and the Infiniti Q50 loses 55 percent of its value. This means the Audi A4 retains 0 percentage points more of its value and has the advantage of higher resale value versus the Infiniti Q50.
Quality Rating: The iSeeCars Overall Quality rating for the Audi A4 is 7.7 out of 10 while the Infiniti Q50's quality rating is 7.6 out of 10. This results in the Audi A4 being ranked 11 out of 36 Best Luxury Small Cars and the Infiniti Q50 being ranked 16 out of 36.
Reliability Rating: iSeeCars' Reliability Rating for the Audi A4 and Infiniti Q50 is 7.7 out of 10.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Audi A4’s base engine makes 201 horsepower, and the Infiniti Q50 base engine makes 300 horsepower. The A4 is rated to deliver an average of 29 miles per gallon, with a highway range of 551 miles. The Q50 is rated to deliver an average of 23 miles per gallon, with a highway range of 580 miles.This gives the Audi A4 the advantage in fuel efficiency and the Infiniti Q50 the advantage in maximum range. Both models use premium unleaded.
Passenger Space Comparison: While both models are compact cars, the Infiniti Q50 has the advantage of offering more interior volume, reflected in more front head room, front shoulder room, front leg room, rear shoulder room, and cargo space. The Audi A4 has the advantage in the areas of rear head room and rear leg room.
Safety Ratings: The Audi A4 has an average safety rating of 5 out of 5 Stars based on NHTSA's crash test ratings.
New Car Pricing
Asking Price:
43191 - 53047
Starting MSRP:
42000
Category Avg Starting MSRP:
(Luxury Compact Cars)
49451
Category Starting MSRP Range:
(Luxury Compact Cars)
33000 - 79900
New Car Pricing
Asking Price:
44150 - 62810
Starting MSRP:
43050
Category Avg Starting MSRP:
(Luxury Compact Cars)
48163
Category Starting MSRP Range:
(Luxury Compact Cars)
31800 - 79900
Used Car Pricing
Avg Used Car Price:
41861
Price Range:
35291 - 47907
Category Avg Price:
(Luxury Compact Cars)
51959
Category Avg Price Range:
(Luxury Compact Cars)
34107 - 95081
# Used Cars for Sale Nationally:
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
Used Car Pricing
Avg Used Car Price:
39500
Price Range:
32491 - 50065
Category Avg Price:
(Luxury Compact Cars)
47204
Category Avg Price Range:
(Luxury Compact Cars)
30035 - 91536
# Used Cars for Sale Nationally:
106
Avg Mileage of Used Cars for Sale:
9749
# Good or Great Deals:
30
5-year Depreciation
Depreciation $:
23168
Depreciation %:
0.55161253
Resale Value $:
18832
Residual Value %:
0.44838747
Typical Category Depreciation %:
(Luxury Compact Cars)
0.51356376
Category Depreciation Range:
(Luxury Compact Cars)
0.34749831 - 0.55942423
5-year Depreciation
Depreciation $:
23875
Depreciation %:
0.55458203
Resale Value $:
19175
Residual Value %:
0.44541797000000005
Typical Category Depreciation %:
(Luxury Compact Cars)
0.53606417
Category Depreciation Range:
(Luxury Compact Cars)
0.43563812 - 0.55458203
Audi A4 Scores & Rankings
Overall Score:
7.7 / 10
Reliability:
7.7 / 10
Retained Value:
7.5 / 10
Safety:
8.0 / 10
Infiniti Q50 Scores & Rankings
Overall Score:
7.6 / 10
Reliability:
7.7 / 10
Retained Value:
7.5 / 10
Safety:
Not available
iSeeCars Reliability Insights for Audi A4
Avg Life Expectancy (years):
13.0
Typical Category Life Expectancy:
(Luxury Compact Cars)
11.0
Category Life Expectancy Range:
(Luxury Compact Cars)
9.5 - 20.1
Chance of Reaching 200k Miles for a New Car:
0.087
iSeeCars Reliability Insights for Infiniti Q50
Avg Life Expectancy (years):
11.3
Typical Category Life Expectancy:
(Luxury Compact Cars)
10.9
Category Life Expectancy Range:
(Luxury Compact Cars)
8.5 - 19.1
Chance of Reaching 200k Miles for a New Car:
0.113
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
2.1128589289986563
Typical Category Recalls:
(Luxury Compact Cars)
2.2
Category Range for Recalls:
(Luxury Compact Cars)
1.5 - 10.4
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.5349060293735424
Typical Category Recalls:
(Luxury Compact Cars)
1.7
Category Range for Recalls:
(Luxury Compact Cars)
1.2 - 16.4
Audi A4 Rankings
Ranking
3 out of / 36Ranking
4 out of / 32Ranking
5 out of / 36Ranking
7 out of / 32Ranking
9 out of / 36Ranking
11 out of / 36Ranking
29 out of / 36Ranking
29 out of / 36Ranking
31 out of / 36Ranking
33 out of / 36Infiniti Q50 Rankings
Ranking
3 out of / 36Ranking
7 out of / 32Ranking
8 out of / 36Ranking
8 out of / 36Ranking
10 out of / 36Ranking
10 out of / 32Ranking
13 out of / 36Ranking
16 out of / 36Ranking
34 out of / 36Available Body Styles
Sedan
Available Body Styles
Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Audi A4 Trim Levels
quattro Premium 40 TFSI, quattro Premium Plus 40 TFSI, quattro Prestige 40 TFSI, quattro S line Prem Plus 45 TFSI, quattro S line Premium 45 TFSI, quattro S line Prestige 45 TFSI
Infiniti Q50 Trim Levels
Luxe, Red Sport 400, Sensory
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 60000 miles
Warranty, Powertrain:
6 years / 70000 miles
Warranty, Roadside Assistance:
4 years
Safety Ratings
NHTSA Safety Rating (last 5 year average):
5 out of 5 Stars
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
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
Base Drivetrain Specs
Horsepower:
201 hp @ 4200 rpm
Torque:
236 foot-lbs @ 1450 rpm
Power-to-Weight Ratio (higher is better):
0.055 hp per pound
Base Drivetrain Specs
Horsepower:
300 hp @ 6400 rpm
Torque:
295 foot-lbs @ 1500 rpm
Power-to-Weight Ratio (higher is better):
0.080 hp per pound
Engine Specifications
Engine Size:
2 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
26 / 36 / 29
Range (city/hwy):
398 / 551 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
3 liters
Engine Configuration:
V
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
20 / 29 / 23
Range (city/hwy):
400 / 580 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Adaptive Cruise Control:
Standard
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Sunroof/Moonroof:
Standard
Voice Recognition:
Standard
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Internet Radio:
Available
Navigation System:
Available
Satellite radio:
Available
Wifi:
Available
Wireless Smartphone Charging:
Available
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Massage Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Standard/Optional Features
Adaptive Cruise Control:
Standard
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Paddle Shifters:
Available
Parking Sensors:
N/A
Power Lift Gate:
N/A
Power outlet:
Standard
Roadside assistance:
N/A
Sunroof/Moonroof:
Standard
Voice Recognition:
Standard
Automatic Parking:
N/A
Cooled/Ventilated Seats:
N/A
Internet Radio:
N/A
Navigation System:
Available
Satellite radio:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
N/A
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Massage Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Safety Features
Backup camera:
Standard
Driver Attention Monitoring:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Lane Keeping Assist:
Standard
Pedestrian Detection:
Standard
360-Degree Camera:
Available
Blind Spot Monitoring:
Available
Rear Cross-Traffic Alert:
Available
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
N/A
Driver Attention Monitoring:
N/A
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
360-Degree Camera:
Standard
Blind Spot Monitoring:
Standard
Rear Cross-Traffic Alert:
Standard
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
37.3 inches
Front Leg Room:
41.3 inches
Front Shoulder Room:
55.9 inches
Rear Head Room:
37.4 inches
Rear Leg Room:
35.7 inches
Rear Shoulder Room:
54.5 inches
Cargo Space:
12 cubic feet
Overall Interior Volume:
92.0 cubic feet
Interior Dimensions
Front Head Room:
39.5 inches
Front Leg Room:
44.5 inches
Front Shoulder Room:
56.7 inches
Rear Head Room:
36.8 inches
Rear Leg Room:
35.1 inches
Rear Shoulder Room:
56.1 inches
Cargo Space:
13.5 cubic feet
Overall Interior Volume:
100.0 cubic feet
Exterior Dimensions
Curb Weight:
3638 lbs
Width:
79.6 inches
Height:
56.2 inches
Length:
187.5 inches
Wheelbase:
111 inches
Ground Clearance:
5.2 inches
Exterior Dimensions
Curb Weight:
3732 lbs
Width:
71.8 inches
Height:
56.8 inches
Length:
189.6 inches
Wheelbase:
112.2 inches
Ground Clearance:
5.3 inches
Standard Wheel/Tire Information
Wheel Size:
17.0 x 7.5 inches
Wheel Type:
aluminum alloy
Tire Size:
225/50R17
Standard Wheel/Tire Information
Wheel Size:
18.0 x 7.5 inches
Wheel Type:
aluminum alloy
Tire Size:
225/50R18
Exterior Colors
Black
Brilliant Black / Mythos Black Metallic
Blue
Navarra Blue Metallic
Gray
Manhattan Gray Metallic
Green
District Green Metallic
Silver
Florett Silver Metallic
White
Arkona White / Glacier White Metallic
Red
Not available
Exterior Colors
Black
Black Obsidian
Blue
Grand Blue
Gray
Graphite Shadow
Green
Not available
Silver
Not available
White
Majestic White
Red
Dynamic Sunstone Red
Interior Colors
Beige
Atlas Beige
Black
Black
Brown
Okapi Brown
Gray
Rock Gray
Interior Colors
Beige
Saddle Brown
Black
Graphite
Brown
Not available
Gray
Stone
