Jaguar does not build many cars like the Jaguar Mark VII M with gasoline engine, made in small numbers.
What is underneath
Under the skin sits gasoline engine. Kerb weight is 1689 kg. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Its place in the line
Nearby in the Jaguar catalogue sit the F-Type and the Vanden Plas.
Jaguar Mark VII