The Pontiac Streamliner is a full-sized car that was produced by Pontiac from the 1942 to the 1951 model years.
Second generation (1949-1951)
The 1949 Pontiacs featured low sleek envelope bodies. Streamliner coupes and sedans utilized the fastback B-body shell. Station wagons continued to be part of the Streamliner line. All of these cars came as standards or Deluxes. All station wagons and other standard models had small hubcaps. Standard coupes, sedans, and wagons were characterized by an absence of beltline trim along with use of rubber gravel guards and painted headlight rims. Deluxes had beltline moldings, chrome gravel guards and bright plated headlight doors. Silver Streak styling was seen again. Silver Streak lettering was placed above front fender spears on Deluxes and high on the fenders of standards. Eights had the number "8" between the two words.
Most standard models had gray striped pattern cloth upholstery. Most Deluxes used dark gray broadcloth trims. Wagons were trimmed as before except imitation leather was only used on standard wagons. 1949 was the last year for wood-bodied station wagons, as production shifted to all-metal station wagons with woodgrain trim during the model year. Streamliner station wagons continued to be the most expensive Pontiac model, ranging in price from $2543 for a standard Six to $2690 for a Deluxe Eight.
The 1950 Pontiacs utilized the popular 1949 envelope bodies with revisions to trim and appointments. The horizontal center grille bar now wrapped around the corners of the body. Deluxes had a chrome body strip, chrome wheel rings, chrome headlight rings and stainless steel gravel guards. Eights had an "8" between the words. Streamliners (except for station wagons and sedan delivery trucks) had fastback styling. The price of Streamliner station wagons fell to a range of $2264 for standard Sixes to $2411 for Deluxe Eights due to the fact all-metal construction did not require final work be done at Hercules Body Company or Iona Manufacturing. Nevertheless, the Streamliner station wagon remained the most expensive Pontiac model.
The 1951 "Silver Anniversary" Pontiacs reflected 25 years of advanced engineering. A wing shaped grille was seen and a Silver Streak theme continued. Streamliners again used the B-body shell with sloping fastbacks on coupes. Deluxes had chrome body strip, bright gravel guards, and headlight rings. Belt line moldings on all Deluxe passenger cars (not station wagons) had a dip behind the doors. Standard belt moldings were straight. A script plate reading Pontiac was used on Series 25 Sixes and on Series 27 Eights a different script read Pontiac Eight. In its final year, the Streamliner station wagon continued to be Pontiac's most expensive model, ranging in price from $2470 for a standard Six to $2629 for a Deluxe Eight. Pontiac's headquarter operations at the Pontiac, Michigan plant was responsible for 49.2% of all Pontiacs built in 1951.
With the demise of the Streamliner, 1951 would be the last time Pontiac offered a B-bodied car until 1959.
Source: Wikipedia