Why Subaru Did Not Offer an Automatic Transmission in the 2015 WRX STI
The decision by Subaru to not offer an automatic transmission in the 2015 WRX STI was driven by a combination of performance considerations, market demand, and the brand's heritage. In this article, we explore the reasons behind this choice and why manual transmission remains the preferred option for many enthusiasts.
Performance Focus
Manual transmissions provide a precise control over power delivery and engine revs, which is crucial for performance driving. The manual transmission allows drivers to be more engaged and in control, making it ideal for drivers who enjoy spirited driving and track use. The manual transmission is also more responsive, enabling a more direct connection to the engine's performance characteristics.
Heritage and Tradition
The WRX STI has a strong motorsport heritage, particularly in rally racing where manual transmissions are the standard. Subaru's focus on manual transmission vehicles aligns with its brand image and the expectations of its core audience, passionate about performance and control. The manual transmission has become a symbol of the car's heritage and special character, setting it apart from other sports cars.
Market Demand
At the time of the WRX STI's release, manual transmission vehicles were in high demand among performance car buyers. Subaru likely believed that the majority of their target demographic preferred the traditional manual setup, which offers a purer driving experience for those who value manual control and engagement. The manual transmission also offers a sense of pride and connection to the car, which many enthusiasts cherish.
Technical Considerations
The WRX STI's turbocharged engine and all-wheel-drive system are optimized for manual transmission. Any attempt to integrate an automatic transmission would likely require significant engineering changes that could alter the car's performance characteristics. Implementing an automatic transmission might compromise the vehicle's dynamic agility, which is one of the WRX STI's key selling points.
Latest Developments
While Subaru has since introduced automatic options in later models, the 2015 WRX STI was specifically targeted at purists who value driving dynamics and a connected driving experience. The manual transmission in this model remains the preferred choice due to its strength and durability. The narrow powerband and the EJ257 engine further enhance the manual transmission's performance, allowing for a more precise and engaging driving experience.
Subaru has also introduced a dual-clutch transmission (DCT) in some markets, including the European market. However, in the US market, the DCT is not yet available, and it is highly unlikely that this will happen until Subaru US is forced to update the powerplant. The Continuously Variable Transmission (CVT) is not strong enough to handle the STI's torque and driving habits, and although an uprated model could be created, it would likely not meet the high standards of enthusiasts who seek a precise and direct connection to the car.
It is important to note that the special items on the STI, such as the transmission and other components, have to come from existing shelf parts at Aisin and other tier 1 parts suppliers. Subaru does not build enough volume to do a ton of one-off parts, which is why the manual transmission remains the standard for the WRX STI.
In conclusion, the decision to not offer an automatic transmission in the 2015 WRX STI was a strategic choice to maintain the car's performance-oriented character and appeal to its core audience. The manual transmission remains a preferred choice for those who value precise control, heritage, and a purer driving experience.