In 1975, LEGO introduced the "Expert Series" with highly detailed, brick-built vehicle models aimed at older, more experienced builders. These sets were precursors to the technically advanced "Expert Builder" line (later Technic) that would launch in 1977.
1975 "Expert Series" (Hobby Sets)
The 1975 sets are part of what is often referred to by collectors as the "Hobby Sets" sub-theme. They were notable for their scale and use of standard bricks to create realistic representations of classic automobiles.
LEGO 390 1913 Cadillac: A detailed red model of the vintage car, one of the primary sets in the initial release.
LEGO 391 1926 Renault: A model of the classic blue Renault, another core offering of the series.
LEGO 392 Formula 1: A blue racing car model, which provided a different aesthetic compared to the classic cars.
Other Vehicles: The series was later expanded with other branded vehicles like a Norton commando motorcycle and a Harley Davidson police bike.
Key Characteristics
Detail-Oriented: The focus was on aesthetic realism using only standard LEGO bricks and plates for all components, including the wheels.
Target Audience: These sets were specifically marketed towards older children and adults, with the inner boxes even doubling as display stands, indicating their purpose as models rather than active play toys.
Building Experience: They were more complex than typical LEGOLAND sets of the time, requiring more steps and pieces to complete.
While these 1975 sets didn't feature the gears, axles, and technical functions that defined the Expert Builder line two years later, they established the concept of a more challenging, expert-level building experience for the brand.