1923 Studebaker Big Six Speedster, had a 353 cu in, which was the biggest motor Studebaker made, resulting in this being a good car for bootleggers during prohibition, and cops that chased them

Twelve of the 14 Arizona counties issued these Studebakers to their Sheriffs, including Pima County. Known for its rugged reliability, the Big Six patrolled the back roads to keep the peace in Pima County.

Studebaker even commissioned and published a book “The Arizona Sheriff", by Grover F. Sexton, highlighting the exploits of Arizona Sheriffs in their Bix Six patrol cars.

https://thejbscollection.com/project/1923-studebaker-big-six-speedster/

https://www.facebook.com/pimasheriff/photos/a.315089881881979/4079183642139232/?type=3