The phrase "astonishing engine" is correct and usable in written English.
It can be used to describe a remarkable or impressive machine or system, often in the context of technology or innovation.
Example: "The new model of the car features an astonishing engine that delivers exceptional performance and fuel efficiency."
Alternatives: "incredible machine" or "remarkable engine".
An astonishing combat engine; a peerless collection of entertainingly insane super villains; an atmospheric rendering of Gotham city, its looming spires and shadowy towers like skeletal fingers reaching to the heavens for mercy.
Civilization V reinvigorates the classic turn-based strategy genre with an astonishing new engine built from the ground-up for this flagship edition of the Civilization franchise.
Sid Meier's Civilization V reinvigorates the classic turn-based strategy genre with an astonishing new engine built from the ground-up for this flagship edition of the Civilization franchise.
If a similar phenomenon were to happen with bankruptcy (say, for example, a housing boom-and-bust cycle and recession that leaves millions of people with mortgages they don't see how to pay back), the whole bankruptcy ecosystem, which is an astonishing economic engine, might brutally collapse.
Could a car like this -- with its sophisticated turbocharged direct-injection diesel engine and astonishing fuel numbers -- be practical for the American lifestyle?
Exploring some of the astonishing technology behind the engines' advanced components, the programme meets the skilled engineers who design and build them, and experience the ups and downs of life on the assembly line.
Aircraft crashed, ran out of fuel or suffered engine failure with astonishing frequency.
The big engine delivers an astonishing wave of torque in an understated surge that flings the big Mercedes forward like a velvet-clad booster rocket.
It's astonishing to think that the engines are held in place, even at the maximum 9g of the display, by a single thrust trunnion - essentially by one large bolt.
But the gas hog award goes to the B-52 Stratocruiser, which has eight jet engines, and zips through an astonishing 86 barrels of fuel, or roughly 3,334 gallons per hour.
"This is absolutely astonishing," he said, transfixed while caressing a gray engine block in a prototyping lab.
