The 1948 Plymouth Special Deluxe featured a sleek and aerodynamic design, incorporating flowing lines and integrated headlights. It was available in various body styles, including a four-door sedan, two-door sedan, coupe, and convertible.

Under the hood, the Special Deluxe was equipped with a 3.6-liter inline-six engine, which produced around 97 horsepower. It featured a semi-automatic transmission called "Vacamatic" as an option, which offered a combination of automatic and manual shifting.

The Special Deluxe was well-received by consumers due to its attractive styling, comfortable interior, and reliable performance. It became one of Plymouth's best-selling models during the late 1940s and helped solidify the brand's reputation for offering affordable and dependable vehicles.