Audi S4 vs. INFINITI Q50
iSeeCars' unbiased and data-driven comparison of the Audi S4 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 S4 and the INFINITI Q50.
In comparing the Audi S4's and the INFINITI Q50's specifications and ratings, the Audi S4 has the advantage in the areas of fuel efficiency, reliability, resale value, overall quality score and base engine power. The INFINITI Q50 has the advantage in the areas of new vehicle base pricing and interior volume. Based on this comparison of the Audi S4's and the INFINITI Q50's specifications and ratings, the Audi S4 is a better car than the INFINITI Q50.
Pricing: For a new model, the Audi S4's price is between $60,760 and $70,238, with the INFINITI Q50 priced between $43,933 and $63,510.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Audi S4 loses 48.1 percent of its value and the INFINITI Q50 loses 51.7 percent of its value. This means the Audi S4 retains 3.6 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 S4 is 7.7 out of 10 while the INFINITI Q50's quality rating is 7.2 out of 10. This results in the Audi S4 being ranked 15 out of 36 Best Luxury Small Cars and the INFINITI Q50 being ranked 21 out of 36.
Reliability Rating: iSeeCars’ Reliability Rating for the Audi S4 is 7.9 out of 10. For the INFINITI Q50 the reliability rating is 7.2 out of 10. This gives the Audi S4 a slight advantage in reliability compared to the INFINITI Q50.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Audi S4’s base engine makes 349 horsepower, and the INFINITI Q50 base engine makes 300 horsepower. The S4 is rated to deliver an average of 24 miles per gallon, with a highway range of 444 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 S4 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 S4 has the advantage in the areas of rear head room and rear leg room.
New Car Pricing
Asking Price:
$60,760 - $70,238
Starting MSRP:
$54,500
Category Avg Starting MSRP:
(Luxury Compact Cars)
$48,375
Category Starting MSRP Range:
(Luxury Compact Cars)
$31,800 - $79,900
New Car Pricing
Asking Price:
$43,933 - $63,510
Starting MSRP:
$43,050
Category Avg Starting MSRP:
(Luxury Compact Cars)
$48,375
Category Starting MSRP Range:
(Luxury Compact Cars)
$31,800 - $79,900
Used Car Pricing
Avg Used Car Price:
Price Range:
-
Category Avg Price:
(Luxury Compact Cars)
$52,490
Category Avg Price Range:
(Luxury Compact Cars)
$35,163 - $100,522
# Used Cars for Sale Nationally:
44
Avg Mileage of Used Cars for Sale:
3,508
# Good or Great Deals:
9
Used Car Pricing
Avg Used Car Price:
$42,201
Price Range:
$35,980 - $48,569
Category Avg Price:
(Luxury Compact Cars)
$52,490
Category Avg Price Range:
(Luxury Compact Cars)
$35,163 - $100,522
# Used Cars for Sale Nationally:
673
Avg Mileage of Used Cars for Sale:
1,268
# Good or Great Deals:
26
5-year Depreciation
Depreciation $:
$26,695
Depreciation %:
49%
Resale Value $:
$27,805
Residual Value %:
51%
Typical Category Depreciation %:
(Luxury Compact Cars)
48.9%
Category Depreciation Range:
(Luxury Compact Cars)
33.5% - 53.5%
5-year Depreciation
Depreciation $:
$22,505
Depreciation %:
52.3%
Resale Value $:
$20,545
Residual Value %:
47.7%
Typical Category Depreciation %:
(Luxury Compact Cars)
48.9%
Category Depreciation Range:
(Luxury Compact Cars)
33.5% - 53.5%
Audi S4 Scores & Rankings
Overall Score:
7.7 / 10
Reliability:
7.9 / 10
Retained Value:
7.5 / 10
Safety:
Not available
INFINITI Q50 Scores & Rankings
Overall Score:
7.2 / 10
Reliability:
7.2 / 10
Retained Value:
7.3 / 10
Safety:
Not available
iSeeCars Reliability Insights for Audi S4
Avg Life Expectancy (years):
8.1
Typical Category Life Expectancy:
(Luxury Compact Cars)
10.6
Category Life Expectancy Range:
(Luxury Compact Cars)
8.1 - 14.3
Chance of Reaching 200k Miles for a New Car:
0.1%
iSeeCars Reliability Insights for INFINITI Q50
Avg Life Expectancy (years):
10.5
Typical Category Life Expectancy:
(Luxury Compact Cars)
10.6
Category Life Expectancy Range:
(Luxury Compact Cars)
8.1 - 14.3
Chance of Reaching 200k Miles for a New Car:
5.2%
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
2.1
Typical Category Recalls:
(Luxury Compact Cars)
2.2
Category Range for Recalls:
(Luxury Compact Cars)
1.2 - 14.6
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.6
Typical Category Recalls:
(Luxury Compact Cars)
2.2
Category Range for Recalls:
(Luxury Compact Cars)
1.2 - 14.6
Audi S4 Rankings
Ranking
1 out of / 4Ranking
4 out of / 36Ranking
9 out of / 36Ranking
11 out of / 12Ranking
15 out of / 36Ranking
15 out of / 36Ranking
24 out of / 36Ranking
25 out of / 31Ranking
28 out of / 36Ranking
31 out of / 36INFINITI Q50 Rankings
Ranking
3 out of / 36Ranking
5 out of / 12Ranking
8 out of / 36Ranking
9 out of / 36Ranking
10 out of / 31Ranking
13 out of / 36Ranking
14 out of / 36Ranking
21 out of / 36Ranking
33 out of / 36Available Body Styles
Sedan
Available Body Styles
Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Audi S4 Trim Levels
3.0T quattro Premium, 3.0T quattro Premium Plus, 3.0T quattro Prestige
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:
5 years / 60000 miles
Warranty, Roadside Assistance:
4 years
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2024 NHTSA Overall Rating:
5 out of 5 Stars
2024 NHTSA Front Crash Overall Rating:
Not yet available
2024 NHTSA Side Crash Overall Rating:
Not yet available
2024 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
2024 NHTSA Overall Rating:
5 out of 5 Stars
2024 NHTSA Front Crash Overall Rating:
Not yet available
2024 NHTSA Side Crash Overall Rating:
Not yet available
2024 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
349 hp @ 5400 rpm
Torque:
369 foot-lbs @ 1370 rpm
Power-to-Weight Ratio (higher is better):
0.090 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:
3 liters
Engine Configuration:
V
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
21 / 29 / 24
Range (city/hwy):
321 / 444 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
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Massage Seats:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Sunroof/Moonroof:
Standard
Voice Recognition:
Standard
Air Suspension:
Available
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Navigation System:
Available
Satellite radio:
Available
Wifi:
Available
Wireless Smartphone Charging:
Available
Captain's seat:
N/A
Front Bench 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
Internet Radio:
N/A
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Massage Seats:
N/A
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
Air Suspension:
N/A
Automatic Parking:
N/A
Cooled/Ventilated Seats:
N/A
Navigation System:
Available
Satellite radio:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
N/A
Captain's seat:
N/A
Front Bench 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:
3880 lbs
Width:
79.6 inches
Height:
56.2 inches
Length:
187.5 inches
Wheelbase:
111 inches
Ground Clearance:
6.5 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:
19.0 x 8.5 inches
Wheel Type:
painted aluminum alloy
Tire Size:
255/35R19
Standard Wheel/Tire Information
Wheel Size:
18.0 x 7.5 inches
Wheel Type:
aluminum alloy
Tire Size:
225/50R18
Exterior Colors
Black
Mythos Black Metallic
Blue
Navarra Blue Metallic
Gray
Chronos Gray Metallic / Daytona Gray Pearl Effect
Green
District Green Metallic
Red
Progressive Red Metallic
White
Arkona White / Glacier White Metallic
Exterior Colors
Black
Black Obsidian
Blue
Grand Blue
Gray
Graphite Shadow
Green
Not available
Red
Dynamic Sunstone Red
White
Majestic White
Interior Colors
Black
Black
Gray
Rotor Gray
Beige
Not available
Interior Colors
Black
Graphite
Gray
Stone
Beige
Saddle Brown