Start with what the GAZ-69A is: a car with gasoline engine, from GAZ. What it meant takes a little longer.
What is underneath
The engine is gasoline engine. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Its place in the line
In the GAZ line-up the GAZ-69A has a clear place: the factory was Ulyanovsk. Nearby in the GAZ catalogue sit the Chaika and the GAZ 24-24.