hybrid powertrain

Obrist, the firm that put a gas engine in a Tesla, goes bankrupt with $37M in debt

Austrian engineering firm Obrist has filed for bankruptcy across three companies with combined debts of roughly $37 million, after failing to bring its HyperHybrid range extender to production. The company spent over a decade pitching its gas-generator powertrain as a smarter alternative to battery-electric cars but never shipped a single production vehicle.