The short answer
The GMC Terrain offers power, while the Subaru Forester excels at fuel economy instead. Choose the GMC Terrain if you prioritize power in daily driving, or the Subaru Forester if fuel economy matters more for your needs. Both are covered by real owner reports on CarWizz.
Overall
Sentiment is sharply divided and heavily dependent on model year and powertrain. Owners of newer models (2022+) report positive experiences with basic maintenance and no major issues up to 70,000 miles, describing the vehicle as comfortable and feature-rich. However, there is a very strong and recurrent narrative of significant mechanical and electrical failures across multiple generations, particularly in models from the 2010-2017 era and specific problematic powertrains in newer vehicles.
Best version to buy
Insufficient owner data available to identify a consensus "best version." Feedback is primarily organized around problematic years and powertrains rather than recommended trims. The Denali trim is mentioned but also associated with buggy infotainment and camera systems.
Known issues
Overall
Overwhelmingly positive sentiment across multiple generations, with the Forester consistently praised for its practicality, safety, all-weather capability, and long-term reliability when properly maintained. Owners express deep satisfaction with the vehicle's spacious interior, excellent outward visibility, and the effectiveness of its standard all-wheel-drive system in snow and poor weather conditions. The vehicle is frequently described as a dependable, no-nonsense family hauler and outdoor companion.
Best version to buy
For the 2019-2024 generation, the Premium trim is frequently cited as the "sweet spot" for comfort, convenience, and price, especially when purchased used. For the new 2025+ generation, the hybrid model is specifically recommended by some owners due to its different (non-CVT) transmission and improved technology.
Known issues
The verdict
The Subaru Forester is the better choice for most buyers.
It has stronger reliability sentiment in owner reports than the GMC Terrain, based on the data above. If the specific known issues on the Subaru Forester are a dealbreaker, the GMC Terrain is worth a closer look instead.
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Which is more reliable, the GMC Terrain or the Subaru Forester?
Owner reports lean more positive on reliability for the Subaru Forester than the GMC Terrain. See the known issues comparison above for the specific concerns owners report on each.
Which is better for families, the GMC Terrain or the Subaru Forester?
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 GMC Terrain or the Subaru Forester?
The Subaru Forester is more fuel-efficient on paper: 10.5 L/100km combined versus 11.8 L/100km for the GMC Terrain, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the GMC Terrain or the Subaru Forester?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the GMC Terrain than the Subaru Forester. See the known issues comparison above.