2021 Audi A4 vs 2021 Audi S4


As part of the new Audi lineup, are the 2021 Audi A4 and the 2021 Audi S4. The A4 is classified as a luxury sedan, whereas the S4 is a luxury sports sedan. Below we have a comparison of the features and equipment in each model that will help you decide which is best for you. 

Size & Capacity Differences: The 2021 Audi A4 vs 2021 Audi S4 

The A4 and S4 both offer the same amount of leg space in both the front and rear seats (41.3 in and 35.7 in, respectively) for the driver and passengers to be comfortable during their ride. The Audi A4 also offers 40/20/20 split-folding rear seats. In addition, both the A4 and S4 have a cargo space of 12 cu ft, but at the time of this writing, the total cargo space of the A4 with the seats folded is not available. 


Features Differences: 2021 Audi A4 vs 2021 Audi S4


The A4 and S4 have similar features such as a 10.1 touch display screen, LED taillights with available animations, and the Audi virtual cockpit. 

Both cars also come with an active Audi connect® subscription, with the S4 also offering a Wi-Fi® hotspot. 

Some of the features that are unique to the A4 model are LED headlights, Ambient LED interior lighting as part of the interior lighting plus package (with 30 color choices!), and smartphone integration. The S4 has interior mood lighting available with the lighting plus package.

Performance Differences: The 2021 Audi A4 vs 2021 Audi S4 

The A4 has a 2L four-cylinder engine with 273lb-ft of torque and 261 horsepower. The A4 can accelerate from 0-60mph in 5.2 seconds. It also has a five-link independent suspension, Seven-speed S tronic® dual-clutch transmission,  and quattro® all-wheel drive. 

Meanwhile, the S4 has a 3L six-cylinder engine with 369lb-ft of torque and a max output of 349 horsepower. The S4 has an acceleration time of 4.4 seconds. It also has five-link independent steel spring S4 sport suspension in both the front and the rear. Different from the A4, the S4 has the S4 Eight-speed Tiptronic® automatic transmission. However, just like the A4, the S4 also has quattro® all-wheel drive. 

 AUDI A4 (with 40 TFSI® quattro® S tronic®)  AUDI S4 (with TFSI® quattro® Tiptronic®) 
 $39,100 Starting MSRP $49,900 
 201 hp Horsepower 349 hp 
 Quattro® with ultra technologyDrivetrain Quattro® with ultra technology
 25 city mpg/34 highway mpg  Fuel economy (estimated) 20 city mpg/28 highway mpg 
 12 cu ft  Maximum Cargo Volume 12 cu ft 
 41.3 in (front) 35.7 in (rear)  Legroom 41.3 in (front) 35.7 in (rear) 
 10.1 in MMI® touch display screen  Standard Infotainment Display 10.1 in MMI® touch display screen 

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