Horse Powertrain – Euro7, Electric and Hydrogen: Interview with Caroline Méchaï, Chief Sales & Business Development Officer

Horse Powertrain was among the leading companies at Busworld Europe in Brussels, where it unveiled its new range of REEV (Range Extended Electric Vehicle) powertrain systems — electric engines with an integrated generator that extends driving range up to 450 km.

Among the main models showcased were the Horse Powertrain H10 REEV, installed on the Marcopolo Volare Attack 9 (pictured below), as well as the K15 and M20 REEV systems — scalable solutions designed for different types of buses — and the M20 hydrogen engine, a clean combustion power unit that can be easily integrated into existing vehicle architectures. The company’s goal? To reduce emissions and operating costs while enhancing efficiency and fleet flexibility.

We spoke with Caroline Méchaï, Chief Sales & Business Development Officer at Horse, who shared more about the company’s vision and innovations.

Horse Powertrain at Busworld Europe 2025

“We don’t just create products, we create solutions. The bus and coach sector plays a key role in our mission to develop and produce low-emission technologies – helping to enable the global energy transition. That’s why at Busworld Europe 2025, we showcased our range extended EV (REEV) powertrain systems, which we believe are the ideal solution for manufacturers and fleet operators.

These efficient engines achieve full compliance with even the most demanding regulations, while enabling long-range, low-emission performance for interurban routes. These systems also reduce charging stress, optimize fleet operations, and enhance competitiveness by lowering operating costs.

At Busworld, we showcased the Horse H10 REEV, installed in the Marcopolo Volare Attack 9 hybrid microbus. This system can deliver 70 kW of continuous electric power and up to 450 km of range. Alongside this engine, we showcased our K15 and M20 REEV systems. These are scalable solutions that can be tailored to different bus sizes and operational profiles. We also showed our Horse M20 hydrogen engine, which can be easily integrated into existing vehicle architectures.”

Aramco has acquired a Horse 10% stake

“Aramco’s strategic investment is key for our ongoing research into improvements in thermal efficiency and the development of alternative fuels – such as e-fuels, hydrogen, and biofuels. The solutions we showed at Busworld – such as our H10, K15, and M20 REEV platforms, our hydrogen engine, and the Horse C15 – establish us as leaders in emissions reduction across the entire product lifecycle while maximizing performance and economic competitiveness.“