They had been trying to for decades but were never able to make even remotely competitive combustion engines. Nothing that would get VW, Toyota or Ford in trouble. The article I posted is sadly paywalled, but it's basically about exactly that.
The article is outdated. Horse Powertrain is already one of the largest ICE manufacturers in the world.
The article is outdated. Horse Powertrain is already one of the largest ICE manufacturers in the world.