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Here's How Much A 2021 Cadillac CT5 Has Depreciated In 5 Years - Jalopnik

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@ 23/08/2026

Cadillac's CT5 has been one of America's favorite luxury sports sedans since launching back in 2019. It proved popular thanks to its sharp looks, lively performance, sharp handling, and good ride quality. It's even more appealing in its V-Series trims, which offer a 360-horsepower twin-turbocharged V6 or a 668-hp 6.2-liter supercharged LT4 V8 in the CT5-V Blackwing version. Still, the CT5 has taken a big hit in depreciation in the last five years, which is great news if you have a used one on your radar today.

The original starting MSRP of the luxury midsize sedan was $38,190, but Kelley Blue Book (KBB) currently has the national average purchase price at just $23,900, meaning the 2021 Cadillac CT5 has depreciated by 37.4% after five years of ownership. That puts the base model close to the Premium Luxury trim in terms of depreciation, as we found that model to have lost 39.4% of its original value after five years. Interestingly, KBB's fair purchase estimates show that top-spec models such as CT5 Sport and CT5-V retain value far better than the lower trims, losing 30.4 and 30.2%, respectively. The depreciation rates of the base models are also notably in line with what CarEdge estimates across the lineup. The site puts t the 2021 CT5's five-year depreciation at 38.7%. The site assumes an average asking price of $44,528 five years ago, which equates to the CT5's average resale value currently sitting at $27,279.

The 2021 Cadillac CT5's depreciation versus rivals

Still, based on CarEdge's data, a five-year depreciation rate of 38.7% means that the 2021 Cadillac CT5 keeps its value better than most of its similarly priced luxury sedan rivals from the 2021 model year, with only the 2021 Acura TLX beating it, seeing as it lost only 36.8% of its value after five years. 

With its launch price falling by a staggering 59.8% since 2021, the Alfa Romeo Giulia has the worst resale value among the major compact luxury sedans that we could verify. It is followed by the BMW 3 Series, which suffered 47.1% depreciation. The Genesis G70 is another worst-performing luxury sedan when it comes to resale value, with its price down 44.4% from what owners paid for it new. Then there's the Audi A5 Sportback, whose value is now 43.3% below the purchase price. CarEdge doesn't have any depreciation estimates for the 2021 Mercedes-Benz C-Class. However, based on its starting MSRP of $42,650 and its current KBB fair purchase price estimate of $21,800, the five-year depreciation of the base model works out to roughly 49% — still far behind the Cadillac.

The 2021 Cadillac CT5's real-world values today

A silver 2021 Cadillac CT5 driving on the highway

Artistic Operations/Shutterstock

Although the highest-mileage models are currently available well under KBB's projected $23,900 average on online marketplaces, most 2021 Cadillac CT5s are listed above that price. At the time of writing, the cheapest CT5 on CarGurus is a 113,000-mile example listed at$17,500. However, if you want a cleaner unit with fewer miles, be prepared to set aside as much as around $45,000, as seen in the case of this 8,000-mile 2021 Cadillac CT5 Sport. Other than being a low-miler, the Sport trim's other drawcards include standard wireless charging, wireless Apple CarPlay and Android Auto, Brembo brakes, as well as a sport steering wheel with magnesium shift paddles.

Because of the healthy levels of consumer appetite they enjoy in the used market, the more potent V-Series performance models usually command similarly high prices even with higher mileage. Case in point: Despite showing over 29,000 miles on the clock, one CT5-V performance sedan is listed for an eye-watering $47,381 on CarGurus. However, we also found other 2021 CT5-V examples with around 70,000 miles on the odometer that are asking high-$30,000s. A similar trend held true when we checked Edmunds, where prices run from approximately $20,000 all the way up to $49,000 for the lowest-mileage models. That being said, it's worth noting that prices will change as CT5s enter and exit the used market, especially with the current generation CT5s being taken off sale.