The line consisted of: The Six was discontinued after the 5th series, and there was no Packard six cylinder car until the 1937 115-C. As the complicated naming system was revised for 1929, 626 and 633 refer to the new 1929 Packard Standard Eight in a similar way.
[1] The first model year was 1937-1942 where it used a 237 cu in (3,884 cc) L-head engine, and was called the Packard One-Ten beginning in 1940.
It was introduced as an affordable middle-class family car competing with the Oldsmobile L-Series and DeSoto sixes and the retail price for a 4-door sedan was US$895 ($18,969 in 2023 dollars [2]) while the station wagon was listed at US$1,295 ($27,447 in 2023 dollars [2]).
[1] When production resumed after the war in the fall of 1945, the model year 1946 resumed with pre-war designs, and all models with the larger 245.3 cu in (4,020 cc) L-head engine were now called the Packard Clipper, with designations of Clipper Six.
The listed retail price of the Clipper Series 2100 4-door Touring Sedan Model 1682 was US$1730 ($27,031 in 2023 dollars [2]).