Start with what the Volvo 740 is: a car with gasoline engine, from Volvo. What it meant takes a little longer.
The engineering
The engine is gasoline engine. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Where it sits
In the Volvo line-up the Volvo 740 has a clear place: the factory was Kalmar Municipality. Its Volvo stablemates include the Volvo 144 and the Volvo 264 TE.