The short answer
Based on available data, the Volvo S40 comes out ahead of the Volvo V50 on fuel economy. 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 the specific model year, engine, and maintenance history. For well-maintained examples with the correct powertrain, particularly the five-cylinder gasoline engines (2.4, 2.4i, T5), long-term owner reports describe a comfortable, solid, and surprisingly durable vehicle that can be "very cheap to own" with basic maintenance, reaching high mileages (270,000+ km / 168,000+ miles cited). These owners praise the driving experience, interior comfort, and practicality.
Best version to buy
Models from the first generation (1996-2004) equipped with the Volvo-manufactured 2.4L or T5 five-cylinder gasoline engines are most frequently cited for their strength and reliability. For the second generation (2004-2011), the 2.4i and T5 five-cylinder engines are again highlighted as the preferred choices.
Known issues
Overall
Mixed sentiment with a clear divide based on engine choice and maintenance history. The V50 is widely appreciated for its comfortable ride, sporty and engaging handling on winding roads, sturdy feel, and practical wagon form. Enthusiast feedback for the T5 turbocharged 5-cylinder models is particularly positive, praising the power, 6-speed manual transmission, and overall driving experience.
Best version to buy
T5 models with the 2.5L turbocharged 5-cylinder engine, particularly when paired with the 6-speed manual transmission. The T5 AWD configuration is noted as a rare and desirable combination.
Known issues
The verdict
The Volvo V50 is the better choice for most buyers.
It has stronger reliability sentiment in owner reports than the Volvo S40, based on the data above. If the specific known issues on the Volvo V50 are a dealbreaker, the Volvo S40 is worth a closer look instead.
Other comparisons
Not sure which one fits you?
Answer a few questions and get a personalized recommendation.
Which is more reliable, the Volvo S40 or the Volvo V50?
Owner reports lean more positive on reliability for the Volvo V50 than the Volvo S40. See the known issues comparison above for the specific concerns owners report on each.
Which is better for families, the Volvo S40 or the Volvo V50?
Both seat a similar number of passengers based on our data. The Volvo S40 is classed as a Sedan, the Volvo V50 as a Station wagon, which affects cargo space and ride height for family use.
Which has better fuel economy, the Volvo S40 or the Volvo V50?
The Volvo S40 is more fuel-efficient on paper: 9 L/100km combined versus 9.5 L/100km for the Volvo V50, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Volvo S40 or the Volvo V50?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Volvo S40 than the Volvo V50. See the known issues comparison above.