Recommended Free Tools
Takeshi Uchiyamada led the overall G21 vehicle-development effort that produced the first-generation Toyota Prius. He became project general manager in 1994 and chief engineer of Toyota’s Vehicle Development Center 2 in January 1996. Toyota separately credits Takehisa Yaegashi with leading the dedicated hybrid-system team from March 1996, so the two men held different, complementary roles.
Uchiyamada’s role in the Prius project
Toyota’s executive biography places Uchiyamada at the center of the broader vehicle program: he became project general manager of Vehicle Development Center 2 in January 1994, then its chief engineer in January 1996. That center developed the Prius.
In prepared testimony dated March 2, 2010, Uchiyamada described his part directly: “I was fortunate to be the chief engineer of the first generation Prius.” The testimony also says he “helped plan and develop the first mass-produced hybrid in the world.” (Toyota prepared testimony.)
Why another engineer is also associated with the Prius
The Prius was a collaborative program, and “led development” can refer to different levels of responsibility. Uchiyamada led the overall G21 vehicle effort; Takehisa Yaegashi led the dedicated hybrid-system team from March 1996, according to Toyota’s account of the project. The subsystem leadership does not displace Uchiyamada’s whole-project and chief-engineer roles. (Toyota, “The Story Behind the Birth of the Prius, Part 2”.)
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match#1 Best Overall
- A plastic model that needs to be assembled.
- 1/32 scale color-coded plastic assembly kit
- Painting not required
- Seals included
How the G21 project became the Prius
Toyota traces the initiative to 1993, when internal discussion of a “vehicle for the 21st century” intensified and the G21 project began. In November 1994, executive vice president Akihiro Wada instructed Uchiyamada to make the next-generation car a hybrid. The team received approval for a production car in June 1995. (Toyota, “The evolution of the Prius”; Toyota, “The Story Behind the Birth of the Prius, Part 1”.)
In March 1997, Toyota completed and announced its series-parallel Toyota Hybrid System. The first-generation Prius launched in Japan in October 1997. Toyota describes the interval from the official start of development to mass production as approximately two years. Its historical account calls the Prius the world’s first mass-produced hybrid passenger vehicle. (Toyota, “Development of Prius and Hybrid Strategy”; Toyota, “The evolution of the Prius”.)
Rank #2
- Brand new box. Detailed exterior. Real rubber tires. True-to-scale detail. Officially licensed product. Does not have any openings. Comes in a plastic display showcase. Manufacturer's original unopened packaging. Made of diecast metal with some plastic parts. Dimensions approximately L-2.75 inches long.
What the launch-era efficiency figure means
Toyota reported a launch-era rating of 28.0 km/L for the first-generation Prius under Japan’s 10-15 test cycle. This is a historical laboratory-cycle figure, not a current fuel-economy rating or a directly comparable real-world result. (Toyota, “The evolution of the Prius,” August 4, 2017.)
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Sources and scope
The role chronology and development history above come from Toyota executive materials and corporate retrospectives. Those sources establish how Toyota describes its own staff roles and project history; they are not independent corroboration of the internal chronology.
Free tools Windows power users keep installed
One-click scans. No signup required.
Quick Recap
Best Value
![Hot Wheels Toyota Prius Custom [White] J-Imports 1/10, 60/250, New for 2026! 1:64 Scale Diecast Toy Vehicle](https://m.media-amazon.com/images/I/41NgwNsRnSL._SL160_.jpg)
- Toyota Prius Custom in a Stunning White Finish!
- Number 1/10 in the J-Imports Set! Number 60/250 in the Overall Series!
- 1:64 Scale Diecast Toy Car
Rank #4
- SCALE: Authentic 1:64 scale die-cast model of the latest Toyota Prius Prime in pristine white color
- COLLECTIBLE SERIES: Part of the 2023 Matchbox collection, numbered 102 out of 125 in the series
- DETAILED DESIGN: Features precise body styling, distinctive headlights, and accurate wheel designs matching the real vehicle
- DISPLAY READY: Perfect size for collectors' displays, measuring approximately 3 inches in length
- AUTHENTIC REPLICA: True-to-life representation of Toyota's popular hybrid vehicle with detailed exterior features
Rank #3
![Matchbox 2023 Toyota Prius Prime [Blue] 41/125, 1:64 Scale Diecast Toy Vehicle](https://m.media-amazon.com/images/I/51WgPj-mGkL._SL160_.jpg)
- Authentic Model Design: 2023 Toyota Prius Prime in a Deep Blue Finish
- Collectible Series Number: Number 41/125 in the Overall Series
- Precise Scale Replica: 1:64 Scale Diecast Toy Car with detailed construction
- Quality Construction: Durable diecast metal body with authentic Toyota Prius Prime styling and features
- Brand New Condition: Comes brand new in original Matchbox packaging, ready to display or play
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
