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Kindred Motorworks has announced the introduction of its Grayback Electric Vehicle Platform (EVP), a proprietary system developed for converting classic vehicles to electric power. The new platform makes its debut with the first customer delivery of the Kindred EV Bronco Edition and will be available exclusively in the company’s electric vehicle lineup.
Key Highlights
- Kindred Motorworks introduces the proprietary Grayback Electric Vehicle Platform (EVP).
- The platform debuts in the company’s first customer Kindred EV Bronco Edition.
- The in-house system enables the conversion of a wide range of classic vehicles to electric propulsion.
- Equipped vehicles offer 200 miles of range, up to 600 horsepower, and fast-charging capabilities.

In-House Platform Development
The Grayback EVP is the result of a five-year, multimillion-dollar development program conducted entirely in-house by Kindred’s engineering team. The platform is named after the USS Grayback (SSG-574), a US Navy submarine built at Mare Island, where Kindred Motorworks is headquartered.
This advanced system allows Kindred to integrate sophisticated electric powertrains into virtually any vintage car or truck. By combining select off-the-shelf components with proprietary controls and new Kindred Motorworks parts, the Grayback EVP manages all critical functions, including heating, cooling, battery management, vehicle controls, power distribution, and charging.
Grayback EVP System Features
At the core of the Grayback EVP is a modular battery design built around a high-energy-density battery module. This design provides the necessary flexibility to adapt the system to the unique packaging constraints of different classic vehicles. It supports multiple motor configurations, allowing for an ideal powertrain match for any conversion, from all-wheel-drive capability to high-performance road driving.
A dedicated thermal management system optimizes the operating temperatures for the high-voltage battery, motor, and inverters. This ensures peak performance and component longevity while also providing efficient cabin heating and air conditioning.
Performance and Charging
Kindred Motorworks EVs equipped with the Grayback EVP are designed for reliable, maintenance-free operation, delivering 200 miles of driving range and up to 600 horsepower. The system was developed with serviceability in mind and can be upgraded over time, giving customers the ability to benefit from emerging battery technologies.
The integrated charging system supports convenient at-home charging as well as CCS DC fast charging. Intelligent monitoring of battery and environmental conditions ensures the fastest possible charging experience in either scenario.
About Kindred Motorworks
Led by founder Rob Howard, Kindred Motorworks operates from its facility on Mare Island in Vallejo, CA. The company’s proprietary technology is used to streamline the vehicle restoration process, building modern classics that are reliable and enjoyable.
The current Kindred Motorworks lineup includes the Kindred Bronco in combustion-engine and EV variants, the Kindred EV Chevy 3100 pickup, and the Kindred EV VW Bus. Pre-orders are available for all models.
For vehicle information and pre-orders, visit www.kindredmotorworks.com.
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