The short answer
The Audi A4 offers fuel economy, while the Genesis G70 excels at power instead. Choose the Audi A4 if you prioritize fuel economy in daily driving, or the Genesis G70 if power matters more for your needs. Both are covered by real owner reports on CarWizz.
Overall
Sentiment is sharply divided by generation and is heavily dependent on diligent maintenance. The B9 generation (model years approximately 2017-2023) receives a generally positive to mixed assessment, with owners praising its refined driving dynamics, comfortable and premium-feeling interior, and the reliability of its EA888 Gen 3 2.0T engine when properly maintained. It is frequently described as a great daily driver that is enjoyable to drive.
Best version to buy
B9 Generation (2017-2023) with the EA888 Gen 3 2.0T engine. This powertrain is repeatedly cited as one of the more reliable Audi engines overall, with known, manageable issues.
Known issues
Overall
Sentiment is sharply divided, creating a high-risk, high-reward ownership profile. The vehicle is widely praised for its exceptional value proposition, offering strong performance (particularly from the 3.3T V6), a well-appointed interior, and engaging driving dynamics at a price point significantly below established German competitors. Many owners express deep satisfaction, citing the car as a "blast" to drive and a remarkable performance bargain, especially when purchased used with steep depreciation.
Best version to buy
The 3.3T Sport Prestige (or similarly high-trim) model is most frequently recommended. Owners highlight the superior power and performance of the twin-turbo V6 over the 2.0T and 2.5T four-cylinder engines.
Known issues
The verdict
The Audi A4 is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Genesis G70, based on the data above. If power matters more to you than running costs, the Genesis G70 is worth a closer look instead.
Common problems by model year
Other comparisons
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Owner reports show similar reliability sentiment for the Audi A4 and the Genesis G70. Check the known issues listed above for specific differences between the two.
Both seat a similar number of passengers based on our data. The Audi A4 is classed as a Station wagon, the Genesis G70 as a Sedan, which affects cargo space and ride height for family use.
The EPA rates the 2025 Audi A4 at 26–29 mpg combined and the 2027 Genesis G70 at 23–24 mpg, depending on the version.
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Audi A4 than the Genesis G70. See the known issues comparison above.