Welcome back to Carshistory1, where we explore the evolution of the world's most iconic cars. Today, we are looking at a monumental milestone in German automotive history: the BMW 3/20 PS AM 1-4. Launched in 1932, this model wasn't just another vehicle; it marked the true beginning of BMW's independent automotive design journey.
The First In-House BMW Design
Before 1932, BMW's automotive success relied heavily on licensed designs, most notably the Austin Seven-based BMW 3/15 PS. However, the introduction of the BMW 3/20 PS AM 1 changed everything. It holds the prestigious title of being the first automobile designed entirely in-house by BMW. For the first time, the engineering and design blueprints were drawn up at BMW's headquarters in Munich, even though the actual assembly and production continued at their established plant in Eisenach.
Evolution and Improvements: Bigger and Better
The primary goal for the 3/20 PS was to offer something its predecessor lacked: space and comfort. BMW engineers successfully lengthened the wheelbase by approximately 25 centimeters (nearly 10 inches) compared to the older 3/15 PS model. This crucial modification allowed for significantly larger, more generously dimensioned bodies, transforming the driving experience from cramped to comfortable.
A Surprising Partnership: Coachwork by Daimler-Benz
In a fascinating twist of automotive history, the spacious new bodies for this BMW were not built by BMW themselves. The manufacturing of these bodies was outsourced to their future fierce rival, Daimler-Benz, specifically at their renowned Sindelfingen coachworks facility. This collaboration ensured high-quality construction for the new, larger frames.
Versatility: Five Standard Body Styles
Understanding the diverse needs of the 1932 market, BMW offered the 3/20 PS AM 1-4 in a variety of configurations. Customers could choose from five standard body styles, making it a highly versatile model line. Let's explore them below:
1. The Classic Sedan
The standard closed-body sedan was perfect for daily commuting, later becoming available with a highly desirable roll-up roof for a semi-open-air experience.
BMW 3/20 PS AM 1-4 Roll-top Sedan
2. Two-Seater Open-Top
For those seeking a sportier, more intimate driving experience, the two-seater open-top variant provided style and freedom on the roads of the 1930s.
3. The Touring Car
Designed for longer journeys, the touring car utilized the extended wheelbase to offer maximum comfort for passengers traveling across the country.
4. Four-Seater Convertible
Combining the elegance of a sedan with the thrill of an open-top, the four-seater convertible was the ultimate symbol of 1930s motoring luxury.
5. Delivery Van
Proving its utility, BMW also offered a delivery van version, catering to small businesses and tradesmen who needed a reliable commercial vehicle.
Quick Specs Summary:
- Production Year: Launched in 1932
- Significance: First BMW designed entirely in-house
- Design Location: Munich, Germany
- Production Location: Eisenach, Germany
- Coachbuilder: Daimler-Benz (Sindelfingen)
- Key Upgrade: Wheelbase extended by 25 cm over the 3/15 PS
The BMW 3/20 PS AM 1-4 paved the way for the ultimate driving machines we know today. By taking control of their own design destiny, BMW set a new standard for themselves in 1932. Stay tuned to Carshistory1 as we continue to explore the fascinating timeline of BMW models!
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