Acura
RL
Cadillac
DeVille
Acura RL vs Cadillac DeVille: 2009 Comparison
The short answer
Based on available data, the Cadillac DeVille comes out ahead of the Acura RL 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
RL
Overall
Positive to nostalgic sentiment for first-generation model, regarded as underappreciated luxury sedan offering exceptional comfort, refinement, and Honda reliability at affordable used prices. Praised for smooth 3.5L V6 engine delivering responsive performance, plush ride quality described as "cloud on greased rails," well-insulated quiet cabin, and generous standard features including heated seats, premium sound system, and memory controls. However, criticism centers on catastrophic parts availability making maintenance increasingly difficult, premium fuel requirement reducing economy, aging interior materials prone to deterioration (door handles peel, dash warps), and front-wheel-drive layout limiting sport sedan appeal versus rear-drive German competitors.
Best version to buy
3.5L V6 (2001-2004) The 2001-2004 model years with upgraded 3.5L V6 producing 225-228 hp represent most desirable specification offering best power delivery, refined features, and final-year production enhancements. Standard equipment generous across all trims including leather, heated seats, premium audio, memory functions.
Known issues
- ⚠• Catastrophic parts availability, suspension components, body panels, interior trim pieces increasingly impossible to source, Honda discontinued most parts, aftermarket support minimal, junkyard inventory depleted, specialist suppliers exp…
DeVille
Overall
Sentiment is bifurcated by generation. For classic models (1950s-1970s), sentiment is overwhelmingly positive, characterized by nostalgic appreciation for their iconic styling, immense size, powerful V8 engines (notably the 472 and 500 cubic inch motors), and their status as symbols of American luxury. These are viewed as comfortable, torque-rich cruisers.
Best version to buy
For classic models, the 1966 DeVille is specifically mentioned for its 7.0L (430 cubic inch) V8 and imposing dimensions. For the problematic Northstar era, the 2004-2005 model years are identified as having the updated "coarse thread" head bolts which partially addressed the pervasive head gasket failure issue.
Known issues
- ⚠Northstar V8 Head Gasket Failure: Catastrophic failure leading to coolant loss, overheating, and engine damage. Very frequent in pre-2004 models. Frequency: very frequent.
- ⚠Northstar V8 Oil Leaks: Persistent leaks from multiple engine seals (e.g., front cover, oil pan, rear main seal). Frequency: very frequent.
- ⚠Engine Mount Failure (Front): Common failure leading to engine movement, clunking noises during shifts, and driveline vibration. Specifically noted on post-2000 models without torque struts. Frequency: recurrent.
The verdict
The Cadillac DeVille is the better choice for most buyers.
It has more power on its best-equipped version than the Acura RL, based on the data above. If efficiency matters more to you than outright power, the Acura RL is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Acura RL or the Cadillac DeVille?
Owner reports show similar reliability sentiment for the Acura RL and the Cadillac DeVille. Check the known issues listed above for specific differences between the two.
Which is better for families, the Acura RL or the Cadillac DeVille?
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 Acura RL or the Cadillac DeVille?
Fuel consumption data is limited for one or both models. Check the specs table above for the figures available on each catalogued version.
Which is cheaper to maintain, the Acura RL or the Cadillac DeVille?
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.