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How fast can you make a Prius?

The Toyota Prius is known for its excellent fuel efficiency, but it's not typically associated with high-performance driving. However, with some modifications, it is possible to significantly increase the speed and acceleration of a Prius. In this article, we'll explore the various ways you can make a Prius go faster.


Factors Affecting Prius Speed


The Prius is designed for efficiency, not raw power. Several factors contribute to its relatively slow acceleration and top speed:



  • Hybrid Powertrain: The Prius uses a hybrid powertrain, combining a small gasoline engine with an electric motor. This setup is optimized for fuel economy, not performance.

  • Aerodynamic Design: The Prius has a highly aerodynamic body shape to reduce drag and improve fuel efficiency, but this design is not optimized for high-speed driving.

  • Weight: The Prius is a relatively heavy vehicle due to the battery pack and other hybrid components, which can limit its acceleration and top speed.


Despite these limitations, there are several ways to modify a Prius to make it faster.


Modifying a Prius for Speed


Here are some of the most effective ways to increase the speed of a Prius:



  • Engine Tuning: Upgrading the engine with a turbocharger or supercharger can significantly boost the Prius's power output, leading to faster acceleration and higher top speeds.

  • Suspension and Brakes: Upgrading the suspension components and brakes can improve the Prius's handling and stability at higher speeds, allowing for safer and more controlled driving.

  • Aerodynamic Modifications: Adding a body kit, spoiler, or other aerodynamic enhancements can reduce drag and improve the Prius's top speed.

  • Weight Reduction: Removing unnecessary components and using lightweight materials can help reduce the Prius's overall weight, improving its acceleration and top speed.


With the right modifications, it's possible to transform a Prius into a surprisingly fast and capable vehicle. However, it's important to note that these modifications can be expensive and may impact the Prius's fuel efficiency and reliability.


Conclusion


While the Toyota Prius is not known for its performance, it is possible to significantly increase its speed and acceleration through various modifications. By addressing the factors that limit the Prius's performance, such as the hybrid powertrain, aerodynamics, and weight, you can create a Prius that is both efficient and surprisingly fast.

What is the fastest a Prius can go?


The top speed for most modern Toyota Prius models is electronically limited to 112 mph. Some older models may have a slightly lower top speed, such as the 106 mph for the 2004 and 2006 models, or the 103 mph for the 2015-2018 Prius+ MPVs. 
You can watch this video for a review of the 2023 Toyota Prius Prime's performance and top speed: 59somardrivesYouTube · Apr 9, 2023

  • Modern models (including 2024): 112 mph, electronically limited. 
  • Older models: Top speeds vary by year, for example:
    • 2004, 2006: 106 mph 
    • 2015-2018 Prius+ MPV: 103 mph 
  • Prius Prime Plug-in:
    • The top speed is also 112 mph when using the hybrid system, but the top speed in all-electric mode is limited to around 84 mph. 

This video shows the acceleration and top speed of the 2023 Toyota Prius on the Autobahn: 0:36AutoRAI InternationalYouTube · Jun 24, 2023



Why is Prius horsepower so low?


Prius has very low HP for the gas engine, 76HP, and poor low speed acceleration due to the Atkinson cycle engine used, as compared to the Otto cycle engines used in non-hybrid type vehicles.



Can you boost a Toyota Prius?


Jumping a Prius the Easy Way
Find the fuse box under the hood of your Prius. You'll find the jump start terminal beneath the cover. Connect the red (positive) jumper cable to the positive terminal in your car. Go over to the assisting vehicle, and connect the other end of the red cable to their own positive terminal.



Can you make a hybrid faster?


Yes, you can make a hybrid car faster through ECU remapping, which optimizes the balance between the gas and electric motors for better performance, or by installing performance chips. More complex and costly modifications include upgrading the battery with a more powerful one or even adding a turbocharger, though this requires specialized knowledge due to the intricate hybrid system. 
This video demonstrates the process of installing a turbocharger on a hybrid vehicle: 58sLove MotoringYouTube · Mar 18, 2025
Tuning and software

  • ECU remapping: This involves modifying the car's engine control unit to optimize the performance of both the gas engine and electric motor, often improving acceleration and power output. 
  • Performance chips: A small microchip can be installed to override the stock settings and make the car faster by, for example, allowing the electric motor to be more active at higher speeds. 

Hardware modifications
  • Battery upgrades: Replacing the stock battery with a more powerful one can increase performance, as newer lithium-ion batteries can offer more power in the same amount of space compared to older nickel-metal hydride batteries. 
  • Turbocharger installation: Adding a turbocharger to the gas engine is possible but requires significant and complex modifications, including fabricating new exhaust tubing and intercooler piping. 

Important considerations
  • Hybrid systems are complex, and modifications require specialized knowledge to ensure proper function and avoid damage or safety issues. 
  • Modifications can impact fuel efficiency and may not be worth the cost and effort for a daily driver. 
  • Modifying the system can have unintended consequences and should be done by professionals. 

This video explains the potential challenges and performance benefits of modifying hybrids and EVs: 58sAuto Expert John CadoganYouTube · Dec 26, 2019


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.