The short answer
Based on available data, the Lexus GS comes out ahead of the Cadillac Catera 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.
Overall
Overwhelmingly negative sentiment based on long-term owner reports. The vehicle is widely regarded as a significant failure for Cadillac, plagued by poor reliability, complex and expensive repairs, and a lack of refinement. It is frequently described as a "footnote" or a "trainwreck." While some owners acknowledge its initial goal to attract younger buyers and its comfortable, well-equipped nature, these positives are completely overshadowed by pervasive mechanical and electrical failures.
Best version to buy
Insufficient owner data available. No specific model year or trim is recommended.
Known issues
Overall
Overwhelmingly positive sentiment regarding long-term reliability, build quality, and overall ownership experience. The GS is consistently praised as a durable, comfortable, and well-built luxury sedan that delivers trouble-free service for many years and high mileage, with specific examples cited up to 350,000 miles. It is described as a perfect sports sedan for a broad number of use cases, offering a good balance of power, roomy comfort, and sportiness.
Best version to buy
The 2010-2011 model years for the third-generation (GS 350) are specifically highlighted as the best years. For the fourth generation, the AWD models equipped with the older 6-speed automatic transmission (over the later 8-speed) are preferred by some owners for their better drivetrain pairing.
Known issues
The verdict
The Lexus GS is the better choice for most buyers.
It has stronger reliability sentiment in owner reports than the Cadillac Catera, based on the data above. If the specific known issues on the Lexus GS are a dealbreaker, the Cadillac Catera is worth a closer look instead.
Common problems by model year
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Owner reports lean more positive on reliability for the Lexus GS than the Cadillac Catera. See the known issues comparison above for the specific concerns owners report on each.
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.
The EPA rates the 2001 Cadillac Catera at 18 mpg combined and the 2020 Lexus GS at 19–23 mpg, depending on the version.
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Lexus GS than the Cadillac Catera. See the known issues comparison above.