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Horse Powertrain Shows C15 Range Extender in Munich to Convert BEVs Into REEVs

Backed by Renault, Geely, Aramco, the supplier pitches a drop‑in module that lets automakers shrink batteries without reworking BEV platforms.

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Horse’s new C15, a compact 1.5L range-extender engine, offers 70–120 kW and drop-in hybrid capability for BEV platforms.
It's bigger than the average briefcase, and certainly not "briefcase-shaped" compared to any briefcase we've seen, but the C15 is designed to be small and sleek enough to easily integrate into many EV classes and layouts
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Overview

  • The C15 integrates a 1.5‑liter four‑cylinder, generator, inverter and cooling package into a unit about 500 × 550 × 275 mm, with a naturally aspirated output around 70 kW (94–95 hp) and a turbo option up to 120 kW (161–163 hp).
  • It is designed for horizontal or vertical installation in front or rear compartments, with packaging small enough to fit the frunk on some EVs.
  • The system is a series range extender, so the engine never drives the wheels and instead runs at efficient rpm to maintain the high‑voltage battery’s state of charge.
  • Horse cites Euro 7 compliance and multi‑fuel capability, including gasoline, ethanol and methanol flex fuels and synthetic fuels, covering applications from B/C‑segment cars to D‑segment models and light commercial vehicles.
  • The company claims the setup enables smaller, cheaper batteries with preserved range, though specifics on fuel‑tank integration, NVH, cost, homologation timing and OEM adoption have not been detailed.