Opel’s sporty Astra GTC has adopted the all-new 1.6-liter CDTI diesel engine, which has been available on the rest of the Astra lineup since late last year. The quiet ‘Whisper Diesel’ is more powerful ...

Last year, German carmaker Opel had its high-and-mighty moment with the most powerful 1.6-liter diesel market, producing 136 hp, a massive 6 hp more than the equivalent Renault engine. But as 2014's ...

The compact hatchback in the Opel stable is now available with a bi-turbo engine. Displacing 1.6 liters and aided by two-stage turbo tech, the 1.6 BiTurbo CDTI is the spiciest oil-burner available for ...