Overview
Toyota and Volkswagen are often cited as leading joint-venture automakers. This article compares their engines from the powertrain perspective to assess their relative strengths and weaknesses.
Choices in the Internal Combustion Era
In the naturally aspirated era both Toyota and Volkswagen performed well: one was known for strong power, the other for fuel economy. Later, Volkswagen shifted focus from improving thermal efficiency of naturally aspirated engines to turbocharging, aiming to increase power while reducing consumption.
To reduce reliance on transmission specialists, Volkswagen was an early adopter of dual-clutch transmissions. In retrospect, that decision was somewhat hasty and led to several well-known issues.
Toyota continued to favor naturally aspirated engines and, based on that approach, developed its hybrid technology, THS. This allowed Toyota to pursue a different path in a competitive market.
One manufacturer moved toward smaller-displacement turbocharging while the other invested in hybrid systems. Both approaches proved to be accurate reads of market trends.
Power Performance
From an engine-performance perspective, Volkswagen's turbocharged engines often deliver stronger results. For example, both the Volkswagen 1.2T EA211 and the Toyota 1.2T 9NR produce about 116 hp, but the EA211 offers slightly higher peak torque.
However, Toyota generally has the edge with naturally aspirated engines. For example, Volkswagen's 1.5L EA211 produces about 113 hp, while the Corolla's M15B, despite being a three-cylinder, produces 121 hp. This contrast reflects Volkswagen's strength in turbocharging and Toyota's strength in naturally aspirated engines.
Fuel Economy
On fuel economy, Toyota typically outperforms Volkswagen. Power and fuel consumption are often in conflict, and manufacturers usually aim for a balance. Volkswagen tends to prioritize power, whereas Toyota emphasizes efficiency. Additionally, Toyota's hybrid technology gives it capabilities that Volkswagen historically did not offer, making Toyota synonymous with economical operation in many markets.
Powertrain Reliability
Regarding powertrain durability and stability, Toyota has generally had a stronger reputation. Volkswagen's early, rapid adoption of turbocharging and dual-clutch transmissions brought several issues, such as excessive oil consumption, transmission failures and warning-light problems. Many of these problems were associated with the second-generation EA888 engine, dry dual-clutch units, and overheating turbochargers.
Toyota has been more cautious when introducing powertrain innovations. Some argue this reflects lower R&D investment, while others attribute it to conservative and rigorous technology validation. Market feedback indicates Toyota has performed well in durability and stability, which helped form perceptions such as "Toyotas are hard to break."
In reality, Volkswagen addressed oil consumption issues starting with the third-generation EA888, and wet dual-clutch transmissions have proven more reliable than earlier dry units.
In recent years, however, Toyota has also reported issues such as increased oil levels and oil emulsification in some cases.
Overall, one interpretation is that Volkswagen has improved its command of its technologies, while Toyota's performance on some fronts has declined or become less rigorous.
Conclusion
Both Volkswagen and Toyota have deep expertise in engine development. For drivers who prefer aggressive driving and stronger thrust, Volkswagen's engines tend to be appealing. For those prioritizing fuel economy and practicality, Toyota remains a strong choice. At comparable price points and vehicle classes, their engines are broadly similar in capability.
