Datsun Deluxe Sedan
From Nissan press:
1953 Datsun Deluxe Sedan: The first postwar passenger car was the Datsun Standard Sedan (DA), which in March 1948was followed by the Deluxe Sedan (DB), distinguished by its American-style streamlined body. The chassis was the same as the DA and at first it had the same 722cc engine. DB-2 (September 1950) had a 860cc, 20ps engine, and with DB-5 (February 1953) output was increased to 24ps.