Cadillac
DTS
Owner report available
Chevrolet
Impala
Owner report available
Cadillac DTS vs Chevrolet Impala
The short answer
Based on available data, the Chevrolet Impala comes out ahead of the Cadillac DTS on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
DTS
Overall
Sentiment is predominantly positive, with a strong consensus that the final-generation DTS (2006-2011) is a highly comfortable, reliable, and undervalued luxury cruiser. Owner feedback consistently praises the exceptionally smooth ride, spacious interior, and powerful yet refined performance of the revised Northstar V8 engine. The vehicle is widely regarded as offering a compelling value proposition on the used market, providing luxury features and comfort at a low purchase price.
Best version to buy
2006-2011 model years (post-head-bolt revision). Higher trim levels (Luxury III, Platinum) are noted for desirable features like Magnetic Ride Control, massaging seats, and a center console shifter.
Known issues
- Cooling system failures (water pump, pulley, crossover pipe gaskets): Can lead to overheating; water pump pulley seizure is a known, preventable failure point. Frequency: very frequent.
- Cramped engine bay / expensive repairs: Routine repairs are labor-intensive due to tightly packaged engine, leading to high shop costs. Frequency: very frequent.
- Suspension component wear: Magnetic Ride Control (MRC) struts are noted to leak and fail, with replacements being very costly; conventional suspension components also wear but are more affordable. Frequency: recurrent.
Impala
Overall
Owner sentiment is highly fragmented across generations, with no single dominant consensus. For classic models (1959, 1963, 1994-1996 SS), sentiment is overwhelmingly positive, centered on iconic styling, collectibility, and performance (e.g., 409 V8, LT1 V8). For the mainstream front-wheel-drive generations (circa 2000-2016), sentiment is mixed to negative, dominated by discussions of mechanical failures, poor reliability, and high repair costs.
Best version to buy
1994-1996 Impala SS: This generation is consistently highlighted as a desirable, powerful, and iconic collectible. The 2014+ generation is also singled out as the best modern version for its refined driving dynamics and quality.
Known issues
- Transmission failure: Complete failure or severe slipping, particularly in high-mileage examples (e.g., over 200,000 miles). Frequency: recurrent.
- Engine mechanical problems: Head gasket failures on 3.5L and 3.9L V6 engines; oil leaks; timing component failures; oil pressure issues related to switches and filter housing gaskets. Frequency: recurrent.
- Electrical and starting issues: Intermittent no-start conditions with clicking noises; battery and alternator failures; systems resetting (time/date) during starting problems. Frequency: recurrent.
The verdict
The Chevrolet Impala is the better choice for most buyers.
It has more power on its best-equipped version than the Cadillac DTS, based on the data above. If efficiency matters more to you than outright power, the Cadillac DTS is worth a closer look instead.
Explore further
Common problems by model year
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Frequently asked questions
Which is more reliable, the Cadillac DTS or the Chevrolet Impala?
Owner reports show similar reliability sentiment for the Cadillac DTS and the Chevrolet Impala. Check the known issues listed above for specific differences between the two.
Which is better for families, the Cadillac DTS or the Chevrolet Impala?
Data on family-specific factors like cargo space is limited for one or both models, but based on available reports, both are positioned as practical daily drivers. Check the specs table above for seating and body type.
Which has better fuel economy, the Cadillac DTS or the Chevrolet Impala?
The EPA rates the 2011 Cadillac DTS at 18 mpg combined and the 2020 Chevrolet Impala at 22 mpg, depending on the version.
Which is cheaper to maintain, the Cadillac DTS or the Chevrolet Impala?
Exact maintenance costs aren't in our data, but reliability signals above are the closest proxy: fewer reported issues generally means lower repair costs over time.