Bill Gates, Khosla Ventures Inject $23.5 Million Into Engine Startup EcoMotors

The Bill Gates and Khosla Ventures dream team are swooping in once again to provide much-needed cash to a worthy sustainable startup. The pair recently injected millions into nuclear power startup TerraPower, and now they're back again to invest $23.5 million in EcoMotors's series B funding round.

EcoMotors builds a lightweight, high-efficiency, low-cost combustion engine that supposedly offer 50% greater fuel efficiency than similar conventional engines. The company's Opposed Piston Opposed...