Horse Powertrain has introduced the B20 engine, built in Valladolid and Sevilla. It keeps running when a vehicle is submerged in water up to 1.1 meters deep, a capability rarely seen outside military vehicles. The engine is already in use, powering the Geely Galaxy Cruiser 700, a hybrid SUV now on sale in China.
For drivers facing flooded roads or taking an SUV off-road and across rivers, the B20 changes the usual rules. Most combustion engines stall or suffer damage if water gets in. Horse Powertrain, a joint venture between Renault and Geely, set out to address that problem. The B20 has an IPX8 water protection rating, sealed electronics and a special transmission interface, allowing it to keep running where most engines would fail. Dieselnet and other industry sources report that the engine is certified to work at depths of up to 1.1 meters, a figure several automotive publications have independently verified.
The B20 is a 2.0-liter inline-four designed for hybrid and plug-in hybrid vehicles, as well as electric cars with range extenders. Depending on the setup, it produces between 188 and 248 horsepower, with torque ranging from 221 to 280 lb-ft, information from CarBuzz and WardsAuto. It weighs 130 kilograms (about 286 pounds), less than many engines in its class. Its basic selling point, but, is how it handles tough conditions.
If the engine’s sensors detect that it is underwater, the management system automatically changes throttle response and limits power to protect the engine. That lets a properly equipped SUV cross a river without risking a breakdown. The B20 can also handle a 45-degree incline, equivalent to a 100% gradient, which is rare even among off-road vehicles. Its waterproofing relies on sealed electronics and a specialized transmission interface, as noted by Autoblog and Electric & Hybrid Vehicle Technology.
Efficiency is another strength. The B20 uses the Miller cycle, direct fuel injection, custom pistons and high-turbulence intake channels to achieve a thermal efficiency of 48.4%. Most combustion engines do not exceed 30%, while the Toyota Prius’s Miller-cycle engine reaches around 40%. The B20 also has a dual active cooling system to keep temperatures steady during long climbs or under heavy loads.
Motor1 Brasil notes that while the B20 engine is certified to operate at depths of up to 1.1 meters, the Geely Galaxy Cruiser 700 SUV, where it is first deployed, is rated for water crossings up to 80 cm. That distinction reflects the gap between the engine’s technical capability and the vehicle’s overall certification.
Unlike many new technologies that remain in concept cars, the B20 is already in production. It debuted at the Beijing Auto Show earlier this year and is aimed at markets where floods and rough terrain are common. The engine is paired with a three-speed hybrid transmission from Horse Powertrain, and its launch in the Geely Galaxy Cruiser 700 suggests Renault models could be next. WardsAuto also reports that Horse Powertrain has opened its first US office in Detroit.
Spain’s role is basic to the project. With manufacturing in Valladolid and Sevilla, Horse Powertrain is putting Spanish engineering at the center of a push for tougher, more resilient vehicles. The timing matters: companies such as Amazon are also moving quickly to adopt new vehicle technologies, including the recent rollout of electric trucks in Germany.
The B20 is ready for real-world use. While electric vehicles draw attention for their environmental benefits, the engine addresses a different challenge: keeping vehicles running during floods, storms and off-road conditions. As climate events become more unpredictable, demand for vehicles that can handle tough conditions is growing. The B20 is already being adopted in China, and its success is likely to prompt a response from European automakers. Spanish factories are now a basic part of this shift toward more resilient vehicles.
