Trim Tag And Vin Decoding 53 Buick

I found this 53 buick in an abandoned salvage yard. All thats left are some trim mldgs and the staight 8 engine, it's really rusting into the ground. I need help identifying what it is so here's the information.

1953 mod. 53-45R
STYLE NO 53-4337
BODYNO G 5510
TRIM NO 42 K
PAINT NO 70 BD
TOP ACC
AND THERE IS A P IN THE LOWER RIGHT CORNER.

The VIN is 16902445
Thanks

 

Its a 53 Special, only the Special had a Straight 8 in 53.
The 45R is a 4 door Special sedan (Riviera), 46R would be a 2 door hdtp.

 

Thanks Bill, it was so bad I thought it was a 2 door.

 

CORRECTION! 53 45R is a Special 2 dr hdtp, as per BUICK.net. Sorry!