Briefcase-sized C15 engine to turn EVs into range-extended hybrids

UK-based Horse Powertrain has developed a compact 1.5-liter, four-cylinder engine-generator called the C15, designed to convert battery-electric vehicles (BEVs) into range-extended electric vehicles (REEVs). The C15 unit, no larger than a briefcase (50 × 55 × 28 cm), functions as a generator that runs at a steady rpm to charge the traction battery, rather than directly driving the wheels. It comes in two variants: a naturally aspirated Euro 7–compliant version delivering up to 70 kW (94 hp) for smaller European B- and C-segment cars, and a turbocharged 120 kW (161 hp) version for larger D-segment vehicles and light commercial vehicles. The system is designed for flexible installation in existing EV platforms with minimal modification, supports multiple fuels including gasoline, ethanol, methanol, and synthetic fuels, and aims to enable smaller battery packs to reduce vehicle weight and cost without sacrificing range. In addition