This is the Rolls-Royce model used in 1974 "The Great Gatsby" movie. Interesting fact - that is not the exact Rolls-Royce model from the book. In the 2013 movie it is not even a Rolls-Royce
This one is repainted and Gatsby's licensing plates are removed. The initial variant of the car would be possibly showcased in the Gatsby's room (unconfirmed).
The file size is 421 kB, not 849 kB. 849 kB is the total size of the two file versions available.