Black smoke from a car's exhaust typically indicates an overly rich fuel mixture — meaning there's too much fuel and not enough air being burned in the engine's combustion chambers.

Electrical gremlins (nothing to do with the hydrogen combustion engine) prevented a successful public preview of the tech, but Alpine presses on. There are some other changes to the Alpenglow car.

The previous car was a running prototype of the 2022 Alpenglow, a static concept. Gone is the turbocharged, 2.0-liter engine with 340 horsepower since it's made way for a 3.5-liter V-6 with a pair ...

Because hydrogen fuel cell systems don't produce electricity until they reach a temperature of 50ºF, hydrogen-powered vehicles like the Toyota Mirai come equipped with a lithium-ion battery to ...

Hydrogen-powered internal combustion engines (H2 ICE) could save traditional engines by leveraging existing tech and infrastructure. Challenges include hydrogen production, storage, and ...

Using this system, Porsche’s virtual hydrogen engine ... Porsche claims this is possible even without an exhaust after-treatment system. ... An Underrated Wedge-Shaped Sports Car That's ...

Toyota also presented a race car powered by hydrogen engine last year, the GR H2 Racing concept. Alpine's sole vehicle at present is the gas-powered A110 sports car but all future models from the ...

Matching the power of a gas engine is also an issue, though Porsche appears to have found a solution. Working purely in the virtual world, Porsche is testing a version of its older 4.4-liter V-8 ...

Roughly the size of a loaf of bread, catalytic converters are located in the exhaust system between the engine and the muffler. They typically have metal shields above and below them, as they get ...

Early test results of Westport’s hydrogen HPDI technology applied to a Scania 13-litre engine platform show a peak brake thermal efficiency of nearly 52%.