Cadillac
DTS
Lexus
LS
Cadillac DTS vs Lexus LS: 2021 Comparison
The short answer
Based on available data, the Lexus LS comes out ahead of the Cadillac DTS on fuel economy and 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.
LS
Overall
The sentiment is overwhelmingly positive, characterized by deep owner loyalty and satisfaction with the vehicle's core mission of providing unparalleled long-term comfort, refinement, and reliability. The LS is consistently described as a benchmark for a "decade-plus" ownership experience with minimal drama, offering a sense of solidity, quietness, and effortless power that makes other vehicles feel "a bit cheap by comparison." While there is strong consensus on its supreme comfort and build quality, nuanced criticisms exist regarding specific model years and components. The LS460 (2007-2017) is praised for its bulletproof V8 but noted for expensive wear items like control arms and air suspension.
Best version to buy
For the LS460 generation, later model years (e.g., 2017) are implied to be more refined and reliable than early first-year models (e.g., 2007), which are described as "Toyota's bastard child for reliability." For the current LS500 generation, the LS500h AWD with the "Teammate" advanced driver-assist system is mentioned as a highly capable but rare and expensive configuration. There is no single trim consensus, but the underlying recommendation is to seek well-maintained examples with full service histories, regardless of specific year or trim.
Known issues
- ⚠**LS460 Generation:** * Control arm and suspension bushing wear: Requires replacement far too often, as frequently as every 60k miles, with costs exceeding $2,000. Frequency: very frequent.
- ⚠**LS500 Generation:** * Early powertrain reliability: The 2018 LS500's new twin-turbo V6 had "early teething issues" compared to the previous V8. A manufacturer recall for engine debris affecting some 2022-2023 models is mentioned.
- ⚠**General (All Generations):** * Excessive weight and handling: The car is described as incredibly heavy, with tires and wheel wells too small for its mass, leading to compromised cornering and braking feel. Frequency: recurrent.
The verdict
The Lexus LS is the better choice for most buyers.
It has stronger reliability sentiment in owner reports than the Cadillac DTS, based on the data above. If the specific known issues on the Lexus LS are a dealbreaker, the Cadillac DTS is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Cadillac DTS or the Lexus LS?
Owner reports lean more positive on reliability for the Lexus LS than the Cadillac DTS. See the known issues comparison above for the specific concerns owners report on each.
Which is better for families, the Cadillac DTS or the Lexus LS?
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 Lexus LS?
The Lexus LS is more fuel-efficient on paper: 8.6 L/100km combined versus 13.1 L/100km for the Cadillac DTS, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Cadillac DTS or the Lexus LS?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Cadillac DTS than the Lexus LS. See the known issues comparison above.