Audi A6 vs. Lexus GS 350

iSeeCars' unbiased and data-driven comparison of the Audi A6 and Lexus GS 350 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 A6 and the Lexus GS 350.

In comparing the Audi A6's and the Lexus GS 350's specifications and ratings, the Audi A6 has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency and overall quality score. The Lexus GS 350 has the advantage in the areas of reliability, resale value, interior volume and base engine power. Based on this comparison of the Audi A6's and the Lexus GS 350's specifications and ratings, the Lexus GS 350 is a better car than the Audi A6.

Pricing: A used 2020 Audi A6 ranges from $24,997 to $39,991 while a used 2020 Lexus GS 350 is priced between $32,221 to $43,823.

Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Audi A6 loses 57.2 percent of its value and the Lexus GS 350 loses 44.3 percent of its value. This means the Lexus GS 350 retains 12.9 percentage points more of its value and has the advantage of higher resale value versus the Audi A6.

Quality Rating: The iSeeCars Overall Quality rating for the Audi A6 is 8.4 out of 10 while the Lexus GS 350's quality rating is 8.4 out of 10. This results in the Audi A6 being ranked 6 out of 29 Best Luxury Midsize Cars and the Lexus GS 350 being ranked 7 out of 29.

Reliability Rating: iSeeCars’ Reliability Rating for the Audi A6 is 8.3 out of 10. For the Lexus GS 350 the reliability rating is 9.0 out of 10. This gives the Lexus GS 350 a slight advantage in reliability compared to the Audi A6.

Engine Power and Fuel Efficiency Comparison: For engine performance, the Audi A6’s base engine makes 248 horsepower, and the Lexus GS 350 base engine makes 311 horsepower. The A6 is rated to deliver an average of 27 miles per gallon, with a highway range of 618 miles. The GS 350 is rated to deliver an average of 21 miles per gallon, with a highway range of 452 miles. This gives the Audi A6 the fuel efficiency and maximum range advantage over the Lexus GS 350. Both models use premium unleaded.

Passenger Space Comparison: While both models are midsize cars, the Lexus GS 350 has the advantage of offering more interior volume, reflected in more front leg room and cargo space. The Audi A6 has the advantage in the areas of front shoulder room, rear head room, rear shoulder room and rear leg room. The Audi A6 and Lexus GS 350 are comparable in regards to front head room.

Safety Ratings: The Audi A6 has an average safety rating of 5 out of 5 Stars based on NHTSA's crash test ratings.