For many, the E9 is considered BMW’s best-looking coupe. Yet the car didn’t earn its place in history solely through Hofmeister’s design. Beyond the iconic silhouette, BMW offered a harmonious pairing of exterior and interior colours and materials that set the standard for many years to come.
A COLOURFUL HISTORY
“Any colour they want, so long as it’s black.” Henry Ford’s famous statement during a sales meeting in 1908 wasn’t far from the truth for Decennia to follow. Until the late 60s, cars were primarily painted in solid dark colours, with the odd tones of greys, reds, blues, and beiges. That’s until the late 60s when the big German car manufacturers stepped up to the plate and mass-introduced bright metallic paints.
Paint technology in the early days limited the production of brighter colours, let alone metallics. It would take until the mid-1920s before car manufacturers began to experiment with brighter colours, such as yellow, blue, and orange. As fashion trends changed in the late 40s and marketing strategies aimed at making cars more appealing to women, the car scene saw another change in colour use, including the use of pastels and bright shades of blue, green, and pink. Yet all these colours had one thing in common: none of them were metallic.
Despite luxury brands such as Jaguar and Aston Martin toying with DuPont metallics in the late 1950s, the top lacquer coat tended to deteriorate very quickly due to fading and oxidation, especially under harsh environmental conditions. This was the source of numerous warranty issues for dealers throughout the 1960s. Things, however, were about to change. While British brands struggled, their German competitors had more success with metallic paints.
By 1970, Mercedes offered more than a dozen different metallic options—in fact, their most famous metallic silver colour, “Silbergrau 180,” dates back to the 50s and became the go-to colour for the 300SL Gullwing. At the same time, they introduced bright reds and yellows as well. Opel, another big player, offered five different metallic paints by the spring of 1967 for their Commodore model. And across the pond, Chevrolet and Plymouth introduced metallic silvers towards the end of the 60s. If BMW, still a small player at the time, wanted to make the E9 a success, they better follow suit. Despite Hofmeister’s objections to any intense and bright colours on the E3, the first E9 colour card offered the customer red and orange amongst darker blues, greys, and greens. A collection that steadily grew during the years of production.
Paint Technology & Innovations
In the early days of car manufacturing, paint was derived from linseed oil resin. It needed to be applied manually before drying for many days at room temperature because it was a “single-component” paint that dried by solvent evaporation. Once dry, it still required cutting and polishing by hand. As cars began to be produced in mass numbers, the current process was no longer untenable, and manufacturers began drying the paint in ovens, but even that wasn’t solving the bottleneck issue.
The need for further efficiency drove the paint manufacturer DuPont to create the first true automotive paint, Duco, which was a nitrocellulose-based lacquer. Although this revolutionary paint dried in just a few hours through the same principle of solvent evaporation, it drastically reduced production time from days to mere hours when it came to the painting stage. Yet that wasn’t all; Duco also offered improved durability, toughness, and a broader palette of colours, marking a significant leap forward in automotive paints. By 1924, it had become the standard for modern automotive coatings.
The next advancement came in the form of alkyd paints during the 1930s. Alkyd is a combination of synthetic monomers (small, man-made molecules that can join together to form polymers) and natural oils. First used as primers, they balanced performance and productivity, and their success laid the groundwork for future coating innovations. More importantly, they established the concept of using specialised coatings for different layers of a paint process.
The 1950s saw the next major breakthrough with the rise of thermoplastic acrylic lacquers. These new paints perfectly aligned with a changing societal attitude towards cars as status symbols, as they delivered unmatched aesthetic appeal, especially when applied to the curved body designs of that era. For the first time in paint history, their low solids and high viscosity offered the use of metallics to create the perfect reflective finish for the very first time. Unfortunately, their durability would remain limited until BMW redeveloped them for the E3 & E9 in the early 70s.














