Cadillac CT6 vs. Cadillac CTS-V

iSeeCars' unbiased and data-driven comparison of the Cadillac CT6 and Cadillac CTS-V 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 Cadillac CT6 and the Cadillac CTS-V.

When we compare the Cadillac CT6's and the Cadillac CTS-V's specifications and ratings, the Cadillac CT6 has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency and interior volume. The Cadillac CTS-V has the advantage in the areas of reliability, resale value, overall quality score and base engine power. Based on this comparison of the Cadillac CT6's and the Cadillac CTS-V's specifications and ratings, the Cadillac CTS-V is a better car than the Cadillac CT6.

Pricing: A used 2019 Cadillac CT6 ranges from $28,429 to $50,942 while a used 2019 Cadillac CTS-V is priced between $59,681 to $81,760.

Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Cadillac CT6 loses 57.2 percent of its value and the Cadillac CTS-V loses 54.5 percent of its value. This means the Cadillac CTS-V retains 2.6 percentage points more of its value and has the advantage of higher resale value versus the Cadillac CT6.

Quality Rating: The iSeeCars Overall Quality rating for the Cadillac CT6 is 6.4 out of 10 while the Cadillac CTS-V's quality rating is 7.2 out of 10. This results in the Cadillac CT6 being ranked 18 out of 24 Best Luxury Large Cars and the Cadillac CTS-V being ranked 13 out of 24.

Reliability Rating: iSeeCars’ Reliability Rating for the Cadillac CT6 is 5.9 out of 10. For the Cadillac CTS-V the reliability rating is 6.6 out of 10. This gives the Cadillac CTS-V a slight advantage in reliability compared to the Cadillac CT6.

Engine Power and Fuel Efficiency Comparison: For engine performance, the Cadillac CT6’s base engine makes 237 horsepower, and the Cadillac CTS-V base engine makes 640 horsepower. The CT6 is rated to deliver an average of 28 miles per gallon, with a highway range of 653 miles. The CTS-V is rated to deliver an average of 16 miles per gallon, with a highway range of 399 miles. This gives the Cadillac CT6 the fuel efficiency and maximum range advantage over the Cadillac CTS-V. Both models use premium unleaded.

Passenger Space Comparison: The Cadillac CT6 has the advantage of offering more interior volume, reflected in more front shoulder room, front leg room, rear head room, rear shoulder room, rear leg room, and cargo space. The Cadillac CTS-V has the advantage in the area of front head room.

Safety Ratings: The Cadillac CTS-V has an average safety rating of 4 out of 5 Stars based on NHTSA's crash test ratings.