2021 Audi S5 vs. 2021 BMW 4 Series
iSeeCars' unbiased and data-driven comparison of the 2021 Audi S5 and 2021 BMW 4 Series 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 2021 Audi S5 and the 2021 BMW 4 Series.
When comparing the 2021 Audi S5's and the 2021 BMW 4 Series's specifications and ratings, the 2021 Audi S5 has the advantage in the areas of reliability, resale value, overall quality score and base engine power. The 2021 BMW 4 Series has the advantage in the areas of typical lower range of pricing for used cars, and fuel efficiency and interior volume. Based on this comparison of the 2021 Audi S5's and the 2021 BMW 4 Series's specifications and ratings, the 2021 Audi S5 is a better car than the 2021 BMW 4 Series.
Pricing: A used 2021 Audi S5 ranges from $45,495 to $56,993 while a used 2021 BMW 4 Series is priced between $39,892 to $55,929.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the 2021 Audi S5 loses 46.2 percent of its value and the 2021 BMW 4 Series loses 52.4 percent of its value. This means the 2021 Audi S5 retains 6.2 percentage points more of its value and has the advantage of higher resale value versus the 2021 BMW 4 Series.
Quality Rating: The iSeeCars Overall Quality rating for the Audi S5 is 7.7 out of 10 while the BMW 4 Series' quality rating is 7.3 out of 10. This results in the Audi S5 being ranked 9 out of 27 Best Luxury Convertibles and the BMW 4 Series being ranked 17 out of 27.
Reliability Rating: iSeeCars’ Reliability Rating for the Audi S5 is 7.7 out of 10. For the BMW 4 Series the reliability rating is 7.4 out of 10. This gives the Audi S5 a slight advantage in reliability compared to the BMW 4 Series.
Engine Power and Fuel Efficiency Comparison: For engine performance, the 2021 Audi S5’s base engine makes 349 horsepower, and the 2021 BMW 4 Series base engine makes 255 horsepower. The S5 is rated to deliver an average of 22 miles per gallon, with a highway range of 398 miles. The 4 Series is rated to deliver an average of 27 miles per gallon, with a highway range of 515 miles. This gives the 2021 BMW 4 Series the fuel efficiency and maximum range advantage over the 2021 Audi S5. Both models use premium unleaded.
Passenger Space Comparison: The 2021 BMW 4 Series, a compact car, has the advantage of offering more interior volume, reflected in more front head room, front leg room, and cargo space. The 2021 Audi S5, a sports car, has the advantage in the areas of front shoulder room, rear head room, rear shoulder room and rear leg room.
New Car Pricing
Asking Price:
-
Starting MSRP:
$60,600
Category Avg Starting MSRP:
(Luxury Sports Cars)
$92,977
Category Starting MSRP Range:
(Luxury Sports Cars)
$41,750 - $500,000
New Car Pricing
Asking Price:
-
Starting MSRP:
$53,100
Category Avg Starting MSRP:
(Luxury Compact Cars)
$44,749
Category Starting MSRP Range:
(Luxury Compact Cars)
$26,100 - $75,400
Used Car Pricing
Avg Used Car Price:
$51,525
Price Range:
$45,495 - $56,993
Category Avg Price:
(Luxury Sports Cars)
$90,285
Category Avg Price Range:
(Luxury Sports Cars)
$37,076 - $296,883
# Used Cars for Sale Nationally:
17
Avg Mileage of Used Cars for Sale:
36,159
# Good or Great Deals:
6
Used Car Pricing
Avg Used Car Price:
$46,654
Price Range:
$39,892 - $55,929
Category Avg Price:
(Luxury Compact Cars)
$37,986
Category Avg Price Range:
(Luxury Compact Cars)
$24,001 - $72,125
# Used Cars for Sale Nationally:
189
Avg Mileage of Used Cars for Sale:
34,479
# Good or Great Deals:
94
Audi S5 Scores & Rankings
Overall Score:
7.7 / 10
Reliability:
7.7 / 10
Retained Value:
7.6 / 10
Safety:
Not available
BMW 4 Series Scores & Rankings
Overall Score:
7.3 / 10
Reliability:
7.4 / 10
Retained Value:
7.2 / 10
Safety:
Not available
iSeeCars Reliability Insights for 2021 Audi S5
Remaining Life Expectancy (years):
7.3
Typical Category Remaining Life Expectancy:
(Luxury Sports Cars)
9.8
Category Remaining Life Expectancy Range:
(Luxury Sports Cars)
5.7 - 14.2
Chance of Reaching 200k Miles for a New Car:
0%
iSeeCars Reliability Insights for 2021 BMW 4 Series
Remaining Life Expectancy (years):
6.7
Typical Category Remaining Life Expectancy:
(Luxury Compact Cars)
8.1
Category Remaining Life Expectancy Range:
(Luxury Compact Cars)
5.1 - 11.4
Chance of Reaching 200k Miles for a New Car:
0%
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
10.6
Typical Category Recalls:
(Luxury Sports Cars)
2.3
Category Range for Recalls:
(Luxury Sports Cars)
1 - 20.3
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
12.5
Typical Category Recalls:
(Luxury Compact Cars)
3.4
Category Range for Recalls:
(Luxury Compact Cars)
1 - 28.9
Audi S5 Rankings
Ranking
1 out of / 2Ranking
3 out of / 41Ranking
3 out of / 27Ranking
4 out of / 7Ranking
6 out of / 19Ranking
7 out of / 27Ranking
9 out of / 32Ranking
9 out of / 27Ranking
10 out of / 41Ranking
10 out of / 27Ranking
11 out of / 41Ranking
12 out of / 27Ranking
16 out of / 27Ranking
17 out of / 41Ranking
18 out of / 41Ranking
21 out of / 27Ranking
31 out of / 41Ranking
37 out of / 41BMW 4 Series Rankings
Ranking
2 out of / 27Ranking
2 out of / 27Ranking
5 out of / 27Ranking
5 out of / 19Ranking
5 out of / 5Ranking
14 out of / 27Ranking
17 out of / 27Ranking
18 out of / 27Ranking
26 out of / 27Available Body Styles
Convertible, Coupe
Available Body Styles
Convertible, Coupe
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
2021 Audi S5 Trim Levels
3.0T quattro Premium, 3.0T quattro Premium Plus, 3.0T quattro Prestige
2021 BMW 4 Series Trim Levels
430i, M440i, 430i xDrive, M440i xDrive
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 / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
Not yet available
2025 NHTSA Front Crash Overall Rating:
Not yet available
2025 NHTSA Side Crash Overall Rating:
Not yet available
2025 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
Not yet available
2025 NHTSA Front Crash Overall Rating:
Not yet available
2025 NHTSA Side Crash Overall Rating:
Not yet available
2025 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
349 hp @ 6300 rpm
Torque:
369 foot-lbs @ 3200 rpm
Power-to-Weight Ratio (higher is better):
0.084 hp per pound
Base Drivetrain Specs
Horsepower:
255 hp @ 5000 rpm
Torque:
294 foot-lbs @ 1550 rpm
Power-to-Weight Ratio (higher is better):
0.065 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):
20 / 26 / 22
Range (city/hwy):
306 / 398 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
2 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD
EPA Fuel Economy
(City/Highway/Combined MPG):
24 / 33 / 27
Range (city/hwy):
374 / 515 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Massage Seats:
Standard
Paddle Shifters:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Voice Recognition:
Standard
Adaptive Cruise Control:
Available
Air Suspension:
Available
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Heated Steering Wheel:
Available
Internet Radio:
Available
Navigation System:
Available
Parking Sensors:
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
Sunroof/Moonroof:
N/A
Trailer Hitch:
N/A
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Available
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Massage Seats:
N/A
Paddle Shifters:
Standard
Power Lift Gate:
Available
Power outlet:
Standard
Roadside assistance:
Standard
Voice Recognition:
Standard
Adaptive Cruise Control:
Available
Air Suspension:
N/A
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Heated Steering Wheel:
Available
Internet Radio:
Standard
Navigation System:
Standard
Parking Sensors:
Standard
Satellite radio:
Standard
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
Sunroof/Moonroof:
N/A
Trailer Hitch:
N/A
Safety Features
Backup camera:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Pedestrian Detection:
Standard
360-Degree Camera:
Available
Blind Spot Monitoring:
Available
Driver Attention Monitoring:
Available
Lane Keeping Assist:
Available
Rear Cross-Traffic Alert:
Available
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Pedestrian Detection:
Standard
360-Degree Camera:
Available
Blind Spot Monitoring:
Standard
Driver Attention Monitoring:
Standard
Lane Keeping Assist:
Available
Rear Cross-Traffic Alert:
Available
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
38.3 inches
Front Leg Room:
41.3 inches
Front Shoulder Room:
55.3 inches
Rear Head Room:
36.3 inches
Rear Leg Room:
33.1 inches
Rear Shoulder Room:
46.9 inches
Cargo Space:
7.3 cubic feet
Overall Interior Volume:
83.0 cubic feet
Interior Dimensions
Front Head Room:
40.6 inches
Front Leg Room:
41.8 inches
Front Shoulder Room:
55.1 inches
Rear Head Room:
36.1 inches
Rear Leg Room:
32.5 inches
Rear Shoulder Room:
43.9 inches
Cargo Space:
13.6 cubic feet
Overall Interior Volume:
84.0 cubic feet
Exterior Dimensions
Curb Weight:
4167 lbs
Width:
79.9 inches
Height:
54.5 inches
Length:
184.9 inches
Wheelbase:
108.8 inches
Ground Clearance:
Not yet available
Exterior Dimensions
Curb Weight:
3918 lbs
Width:
81.9 inches
Height:
54.6 inches
Length:
187.9 inches
Wheelbase:
112.2 inches
Ground Clearance:
5 inches
Standard Wheel/Tire Information
Wheel Size:
18.0 x 8.5 inches
Wheel Type:
aluminum alloy
Tire Size:
255/35R18
Standard Wheel/Tire Information
Wheel Size:
18.0 x 7.5 inches
Wheel Type:
painted aluminum alloy
Tire Size:
225/45R18
Exterior Colors
Black
Mythos Black Metallic
Blue
Navarra Blue Metallic / Turbo Blue
Gray
Daytona Gray Pearl Effect / Quantum Gray
Green
District Green Metallic
Red
Tango Red Metallic
White
Glacier White Metallic / Ibis White
Orange
Not available
Exterior Colors
Black
Black Sapphire Metallic / Jet Black
Blue
Arctic Race Blue Metallic / Portimao Blue Metallic
Gray
Bluestone Metallic
Green
Sanremo Green Metallic
Red
Not available
White
Alpine White / Mineral White Metallic
Orange
Sunset Orange Metallic
Interior Colors
Black
Black w/ Diamond Stitching
Gray
Rotor Gray
Red
Magma Red
Beige
Not available
Brown
Not available
Interior Colors
Black
Black / Black w/ Blue Contrast Stitching / Black w/ Oyster Contrast Stitching
Gray
Oyster w/ Contrast Stitching
Red
Tacora Red w/ Contrast Stitching
Beige
Canberra Beige / Canberra Beige/Black w/ Contrast Stitching
Brown
Cognac w/ Contrast Stitching / Mocha w/ Contrast Stitching
