Audi A3 vs. A4 - Which One Should You Get?

authorBy Avinaba


It makes sense to look over the Audi inventory if you want a car that rules the road. Audi is renowned for designing engines that are smooth, powerful, and have remarkable handling. Excellent features can be found in both the A3 and A4. There is a 2.0 TFSI engine thundering under the hood. But the specifications vary a little.

Any model in the portfolio is definitely worth the extra expense because the Audi brand epitomizes contemporary luxury and cutting-edge engineering. However, clients on a tight budget might wish to look at the price. All trim levels of the 2018 Used Audi A3 are less expensive when compared to the Audi A4 overall.

Between the two Premium, Premium Plus, and Prestige trims, there is a difference of almost $4,000. On the other hand, you might discover that the modern A4 sedan is an investment that you simply can't pass up. You can choose to spend more on the Used 2018 Audi A4 or save a little more money on the 2018 Audi A3—both models are excellent choices.


Audi A3: The base Titanium variant with the 188-hp 2.0-liter engine costs $34,295 for the Audi A3. The Premium trim, which starts at $36,595, is the least expensive vehicle with AWD and the more potent 45model’s engine. Starting prices for the top-of-the-line Prestige model with the 40 and 45 powertrains are $42,695 and $45,795, respectively. 

Audi A4: The starting price of the A4 is $40,095 for the base Flagship model with the 40 Quattro powertrain, while the base trim costs $41,895 with the 45 Quattro powertrain. Starting prices for the top-of-the-line Prestige trim for the 40 and 45 engines are $50,395 and $50,795, respectively.

The Verdict: The A3's basic price is far lower than the A4's base price, but as you add additional equipment to it, the A3's value rapidly depreciates. Unless you plan to skimp on choices for your A3, it might be more cost-effective to get an A4 model, which comes standard with equipment that is on par with or better than that of an A3 and is significantly larger for only a few thousand dollars more. 

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Design And Body

Audi A3: In North America, the A3 is no longer offered as a hatchback; instead, it is only offered as a four-door sedan or a convertible. With Audi's massive single-frame grille, slender LED headlights and taillights, sharp stylistic lines, stubby front, and rear overhangs, and an integrated rear lip spoiler, it has a generally unassuming appearance that is athletic and contemporary. 

Audi A4: For 2020, Audi made a number of design adjustments to the vehicle, giving it a sportier, younger appearance with completely new headlights and taillights. With the Used Audi A4 Allroad, the A4 is offered as a four-door sedan or a wagon. Though it is a compact car rather than a subcompact, the Audi A4 resembles the A3 in terms of appearance and has a comparable front and back overhang. But it also includes five seats, the single-frame grille from Audi, and LED headlights and taillights.

The Verdict: Choose the A4 if you want something that appears more mature. The A3's proportions can be a little off-putting. Due to a recent redesign for the 2020 model year, the A4 also sports a more contemporary appearance. These two appear to be fairly similar, though the Audi A4's proportions give it a more conventional sedan appearance. The A3 is significantly shorter and stubbier in comparison.

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Performance And Fuel Economy

Audi A3: The front-wheel-drive A3 40 receives an EPA rating of 26 mpg city, 35 mpg highway, and 29 mpg combined. The more potent A3 45 comes standard with AWD and is rated at 22 mpg city, 30 mpg highway, and 25 mpg combined. 

The seven-speed DSG transmission in all variants transmits power to Audi's all-wheel-drive system, which is optional unless you choose the more expensive "45" model. Audi's Quattro isn't truly a standard feature in the A3, which comes standard with front-wheel drive. A 2.0-liter turbocharged four-cylinder engine with 184 horsepower and 224 lb-ft of torque powers the base A3 '40'. Additionally, a 2.0-liter engine with additional power is offered; it is known as the A3 '45' and produces 228 hp and 258 lb-ft of torque.

You may also purchase the S3 or RS 3 if you prefer something faster.

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Audi A4: The Audi A4 40 receives a combined rating of 28 mpg from the EPA, which rates it at 25 mpg city, and 34 mpg highway. With 24 mpg city, 31 mpg highway, and 27 mpg combined, the A4 45 has more marginal fuel economy. Ahybrid system is present in both. 

Shoppers can also choose the more potent A4 45 variant, which comes with a more powerful 2.0-liter engine that produces 261 horsepower and 273 lb-ft of torque. Audi's seven-speed DSG transmission is available in the A4 40 and A4 45, and all variants come standard with Quattro all-wheel drive.

The S4 is also an option if you need something even faster.

The Verdict: Customers of both of these vehicles have two distinct 2.0-liter engine options to select from. They have the same transmissions and are also available with an optional all-wheel drive system. To sum up, these two have very comparable powertrain lineups in their standard A3 and A4 configurations, making this category a bit of a toss-up. It’s not their powertrains, but their proportions and contents that distinguish these two.

Dimension And Comfort

Audi A3: Its front seats have 41.2 inches of legroom and 36.5 inches of headroom, while the second row has 35.1 inches of legroom and 36.1 inches of headroom. Subcompact sedans like the A3 have less space for both passengers and cargo than compact sedans like the A4. 12.3 cubic feet are available in the trunk.

Audi A4: The trunk has 13 cubic feet of space. 37.4 inches of headroom and 35.7 inches of legroom are available in the second row. The A4 is a small sedan with 41.3 inches of legroom and 38.9 inches of headroom in the front seats.

The Verdict: On paper, the A4 may not appear to be much larger than the A3, but in reality, the A4 is a larger vehicle. The A3 has four doors, but despite its size, the A4 is a better option if you frequently transport passengers in the back seats.

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Audi A3: Audi's MMI3 infotainment system is available in the A3, and is one of the easiest to use systems in its category. It has a touch screen that is responsive and simple to use, and the user-friendly menu layouts make it easy to rapidly access and change settings and features.

  • Standard infotainment features: a 10.1-inch touch screen, satellite radio, USB ports, Bluetooth, and wireless Apple CarPlay and Android Auto
  • Available infotainment features: navigation, a 15-speaker Bang & Olufsen stereo, a Wi-Fi hot spot, and wireless device charging
  • Additional standard features: a panoramic sunroof, tri-zone automatic climate control, and a 10.3-inch digital gauge cluster

Audi A4: The MMI infotainment system and a sizable 10.1-inch touch screen are both included with the Audi A4. Even though it may not suit everyone's tastes, this system works rather well despite its tacked-on appearance. The images are clear, the menus are simple to navigate, and the touch screen reacts promptly to inputs.

  • Standard infotainment features: a 10.1-inch touch screen, Android Auto, wireless Apple CarPlay, HD Radio, a 10-speaker stereo, Bluetooth, and two USB ports
  • Available infotainment features: a 12.3-inch digital gauge cluster, navigation, satellite radio, a 19-speaker Bang & Olufsen stereo, and wireless device charging
  • Additional standard features: keyless entry, push-button start, tri-zone automatic climate control, ambient lighting, and a sunroof

The Verdict: Although the A4 comes standard with greater equipment, the A3 and A4 have fairly similar features and equipment. If you are tempted to choose a lot of optional accessories for the A3, it could be preferable to opt for the A4 instead and choose fewer options.

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Here’s What We Recommend - Expert Advice

Both Audi models come equipped with remarkable amenities that elevate every drive. You can be sure that you'll have some of the latest technologies available when you choose an Audi. Both vehicles come equipped with multi-zone automatic climate controls, Bluetooth, and sunroofs. How about security? Both models include Audi's newest technological advancement: Audi Pre-Sense. This driver aid feature keeps an eye on the surrounding traffic and alerts you to any impending road hazards. To avoid a collision, your Audi can even brake automatically!

Interested in checking out these vehicles? Check out our website to see or search for the latest new cars near you. Explore New cars now!

Frequently Asked Questions

Q. Which is a better car, Audi A3 or Audi A4?

Ans: In general, the A4 is larger than the A3, and the A4 performs better, but both are very comparable in terms of reliability. To make things clearer and illustrate the features and price differences between the two, we will discuss the 2022 Audi A3 and A4 for each of the themes.

Q. How much smaller is the Audi A3 than the A4?

Ans: Inside and exterior, the Audi A3 is the smaller of the two vehicles. The wheelbase of the Audi A3 is 103.5 inches, while that of the Audi A4 is 111 inches. The Audi A3 is 176.9 inches long. The legroom inside the Audi A3 is 41.2 inches in the front and 35.2 inches in the back.

Q. Why did Audi discontinue A3?

Ans: The best-spec For 2023, the A3's prestige trim will no longer be available, although the other trim levels will receive more standard and optional equipment. LED headlights and better door armrests are now standard on all variants.

Q. What is the cheapest Audi?

Ans: The A3, which has a $33,900 starting price, is the least expensive Audi. The closest model in this price bracket, the 2022 Audi Q3, has a starting price of $35,900 if you'd rather buy an SUV than a sedan.