The short answer
Based on available data, the Audi Q5 comes out ahead of the Cadillac SRX 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.
Overall
Mixed sentiment with a clear dichotomy. The vehicle is consistently praised for its superior driving dynamics, handling, and refinement compared to mainstream and some luxury competitors. Owners frequently describe it as "fun to drive," "super quiet and smooth," and possessing a solid, tank-like build quality.
Best version to buy
The 3.0T supercharged V6 engine (found in pre-2017 Q5 models and in the SQ5) is very frequently recommended over the 2.0T four-cylinder for its power, refinement, and perceived reliability. For newer generations, the plug-in hybrid Q5 e is suggested as a high-feature, powerful, and efficient alternative to the performance-oriented SQ5.
Known issues
Overall
Sentiment is sharply divided and heavily dependent on model year, powertrain, and maintenance history. The second-generation model (2010-2016) is frequently described as a significant reliability and financial liability, with very frequent reports of catastrophic and expensive failures involving the transmission, 3.6L engine (particularly timing chains), and electrical systems. Owners who experience these issues characterize the vehicle as an absolute money pit that falls apart after 5-6 years and plummets in resale value.
Best version to buy
Insufficient owner data available to declare a consensus "best" version. Anecdotal praise exists for well-maintained examples of the 2014 SRX Premium with the 3.6L engine, and for the first-generation V8 AWD models with the MagnaRide suspension.
Known issues
The verdict
The Audi Q5 is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Cadillac SRX, based on the data above. If power matters more to you than running costs, the Cadillac SRX is worth a closer look instead.
Common problems by model year
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Owner reports show similar reliability sentiment for the Audi Q5 and the Cadillac SRX. Check the known issues listed above for specific differences between the two.
The Cadillac SRX seats more passengers than the Audi Q5 on its catalogued best-equipped version. Body type also differs: the Audi Q5 is classed as a SUV, the Cadillac SRX as a Crossover.
The EPA rates the 2026 Audi Q5 at 24 mpg combined and the 2016 Cadillac SRX at 18–19 mpg, depending on the version.
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Audi Q5 than the Cadillac SRX. See the known issues comparison above.