Audi A4 vs. Nissan Sentra

iSeeCars' unbiased and data-driven comparison of the Audi A4 and Nissan Sentra 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 A4 and the Nissan Sentra.

In comparing the Audi A4's and the Nissan Sentra's specifications and ratings, the Audi A4 has the advantage in the areas of reliability and base engine power. The Nissan Sentra has the advantage in the areas of new vehicle base pricing, typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency, resale value, interior volume and overall quality score. Based on this comparison of the Audi A4's and the Nissan Sentra's specifications and ratings, the Nissan Sentra is a better car than the Audi A4.

Pricing: A used 2025 Audi A4 ranges from $35,291 to $47,907 while a used 2025 Nissan Sentra is priced between $18,991 to $26,042. For a new model, the Audi A4's price is between $43,191 and $53,047, with the Nissan Sentra priced between $21,426 and $28,113.

Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Audi A4 loses 55 percent of its value and the Nissan Sentra loses 40.7 percent of its value. This means the Nissan Sentra retains 14.4 percentage points more of its value and has the advantage of higher resale value versus the Audi A4.

Quality Rating: The iSeeCars Overall Quality rating for the Audi A4 is 7.7 out of 10 while the Nissan Sentra's quality rating is 7.9 out of 10. This results in the Audi A4 being ranked 11 out of 36 Best Luxury Small Cars and the Nissan Sentra being ranked 20 out of 37 Best Small Cars.

Reliability Rating: iSeeCars’ Reliability Rating for the Audi A4 is 7.7 out of 10. For the Nissan Sentra the reliability rating is 7.3 out of 10. This gives the Audi A4 a slight advantage in reliability compared to the Nissan Sentra.

Engine Power and Fuel Efficiency Comparison: For engine performance, the Audi A4’s base engine makes 201 horsepower, and the Nissan Sentra base engine makes 149 horsepower. The A4 is rated to deliver an average of 29 miles per gallon, with a highway range of 551 miles. The Sentra is rated to deliver an average of 34 miles per gallon, with a highway range of 496 miles.This gives the Nissan Sentra the advantage in fuel efficiency and the Audi A4 the advantage in maximum range. The A4 uses premium unleaded, and the Sentra uses regular unleaded.

Passenger Space Comparison: While both models are compact cars, the Nissan Sentra has the advantage of offering more interior volume, reflected in more front head room, front shoulder room, front leg room, and cargo space. The Audi A4 has the advantage in the areas of rear head room and rear leg room. The Audi A4 and Nissan Sentra are comparable in regards to rear shoulder room.

Safety Ratings: When comparing crash test ratings from NHTSA, both the Audi A4 and the Nissan Sentra have the same average safety rating of 5 out of 5 Stars.