BYD Introduces an Innovative 2.0L Boxer Engine as EV Range Extender

While BYD is widely recognized for its electric vehicle lineup, the company has recently concentrated on enhancing its DM-i hybrid powertrains. This system merges electric motors with gasoline engines to achieve impressive fuel efficiency and driving distances exceeding 620 miles (1,000 kilometers).

Now, BYD is pushing the boundaries further by integrating a unique extended-range electric powertrain that combines electric propulsion with a combustion engine in an unexpected way. The highlight is a boxer engine, traditionally found in brands like Porsche or Subaru, which will operate as a generator to recharge the EV's battery pack.

This choice is unconventional for BYD, but there are clear engineering benefits. The flat boxer engine layout lowers the vehicle's center of gravity, enhancing handling characteristics. It also incorporates a dry-sump oil system to minimize engine size and noise, alongside a bespoke lubrication and cooling setup optimized for the opposed-cylinder design. BYD claims that when idling or under minimal load, the engine produces noise levels just one decibel above that of an electric motor, making it nearly silent.

Yangwang U7

The turbocharged 2.0-liter boxer engine was developed specifically as a range extender for series hybrid electric vehicles built on BYD's e4 platform. Its main function is to generate electricity to recharge the battery; however, under specific conditions, it can also provide direct power to the rear wheels, delivering 272 horsepower and 280 lb-ft of torque.

The first application of this engine will be in the Yangwang U7, a luxury sedan measuring over 17 feet in length from BYD's premium sub-brand. The model is slated for release in China in early 2025, with a starting price of approximately $88,500 (¥628,000) for the plug-in hybrid variant.