The short answer
Based on available data, the Infiniti FX comes out ahead of the Cadillac SRX 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
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
Overall
Owner sentiment is strongly positive, characterized by deep affection for the vehicle's unique combination of sporty driving dynamics, distinctive styling, and proven powertrain reliability. The FX is consistently described as a "ground-breaking" and "ahead of its time" SUV that prioritized sporty handling and performance over traditional off-road capability. Owners report high satisfaction with the VQ-series V6 (FX35/FX37) and VK-series V8 (FX45/FX50) engines for their power and longevity, with many vehicles reaching over 200,000 miles (322,000 km) with proper maintenance.
Best version to buy
Insufficient owner data available to declare a definitive "best" trim or year. Feedback is split between appreciation for the V8 power of the FX45/FX50 and the more common and potentially more reliable V6 in the FX35/FX37.
Known issues
The verdict
The Infiniti FX is the better choice for most buyers.
It has more power on its best-equipped version than the Cadillac SRX, based on the data above. If efficiency matters more to you than outright power, the Cadillac SRX is worth a closer look instead.
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Which is more reliable, the Cadillac SRX or the Infiniti FX?
Owner reports show similar reliability sentiment for the Cadillac SRX and the Infiniti FX. Check the known issues listed above for specific differences between the two.
Which is better for families, the Cadillac SRX or the Infiniti FX?
The Cadillac SRX seats more passengers than the Infiniti FX on its catalogued best-equipped version. Body type also differs: the Cadillac SRX is classed as a Crossover, the Infiniti FX as a Crossover.
Which has better fuel economy, the Cadillac SRX or the Infiniti FX?
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 Cadillac SRX or the Infiniti FX?
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.