Geely and Renault Unveil Compact Hybrid Engine: Fits Almost Anywhere, Turbo Included if Needed
The new power unit stands out for its compact size and versatile design.
The Geely–Renault joint venture has unveiled a new hybrid powertrain, the Horse C15. The development is distinguished by its compact dimensions and universal construction.
The unit includes a 1.5-liter internal combustion engine along with an integrated generator and inverter combined into a single block. The engine’s dimensions are 500 x 550 x 275 mm (about 19.7 x 21.6 x 10.8 inches).

A key feature of the C15 is its versatility: the engine can be mounted either vertically or horizontally. This allows for installation in both the front and rear of a vehicle.
Two versions are planned:
- A naturally aspirated engine for compact and midsize vehicles
- A turbocharged variant for commercial transport
Another major advantage is compatibility with existing electric vehicles. According to the company, the system can be integrated into most modern EVs without significant modifications.

It’s worth noting that the Geely–Renault partnership already supplies engines for Mercedes-Benz. Recently, it was reported that a 2.0-liter four-cylinder engine produced by Horse will power the next-generation CLA.
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