Silver Streaks were found on Pontiacs for model years 1935-1956 inclusive, aside from 1943-45 when no cars were made due to World War 2.
One task Pontiac stylists faced was keeping the motif fresh-looking model year after model year. What they produced is pictured below.
The theme started with a broad band containing many little streaks.
No real difference for 1936. Note that headlights are now attached to the main body rather than the catwalks.
The streak band has been narrowed and emerges on the trunk.
Minor streak changes for '38.
For 1939 the motif is echoed by grille bars.
Another new body, but the streaks retain their familiar form.
The band widens for 1941. The five streaks are now noticeably separated. An echo of the previous streak design is seen below the headlights.
Not much change for '42.
The post-war grille had minor changes, but the streaks are as they were. This is an interesting advertisement because it shows all the previous streak-bearing Pontiac front ends.
Sales photo. The grille is changed, but not the streaks.
These Pontiacs have only three streaks, two narrow ones plus a larger central one.
The redesigned '49s return to five streaks, but the larger central streak is retained.
1950-52 Pontiac streaks are essentially the same.
For the first time, we find split sreaks.
Back to five streaks, but they are all the same size -- narrow.
Another redesigned body. There are two widely spaced streak sets. Not visible are streak bands on the small rear fender fins.
Barrett-Jackson auction photo. The final model year for streaks. They are essentially the same as the 1955 version.