After proven success in motorsport applications, the BMW Group is expanding its use of natural fiber composites into regular production vehicles. The company has announced that, following years of development and testing, components made from renewable raw materials such as flax fibers have reached the necessary standards for use in structural areas like vehicle roofs.
These sustainable lightweight parts were developed in partnership with Bcomp, a Swiss clean-tech firm. BMW’s venture capital arm, BMW i Ventures, also holds an investment stake in the company—supporting the group’s long-term goal to reduce carbon emissions across its vehicle lineup. Lightweight design has been a cornerstone of BMW engineering for decades. The inclusion of natural fibers adds an environmental advantage, as they offer a lower carbon footprint compared to conventional materials like carbon fiber.
Testing has shown these fibers to be well-suited for both visible and structural components inside and outside the vehicle. In one application, replacing carbon fiber composite with flax-based material in a roof structure of a next-gen BMW model could cut carbon emissions by around 40% during production, while also offering better recycling prospects at the end of the vehicle’s life.
These innovative materials first appeared in the 2019 Formula E season on BMW M Motorsport vehicles. They’ve since been integrated into the BMW M4 DTM and M4 GT4 race cars, replacing carbon fiber-reinforced plastic parts. Since 2022, Bcomp has served as an official partner to BMW M Motorsport in support of the M4 GT4 program.
The natural fiber components will now face one of their most demanding trials—being fitted to the M4 GT4 during the upcoming 24-hour race at Nürburgring. Franciscus van Meel, CEO of BMW M GmbH, emphasized the importance of these materials, stating, “Natural fibers are helping us cut emissions in manufacturing without compromising performance. This breakthrough brings our racetrack-driven innovations closer to everyday road use.”
With series readiness now confirmed, BMW plans to integrate these materials into its future M models—merging sustainability with the brand’s performance DNA. The BMW Group is a global leader in the premium automobile, motorcycle, and mobility solutions sectors. Headquartered in Munich, Germany, the company encompasses a rich portfolio of iconic brands, including BMW, Mini, and Rolls-Royce Motor Cars.
Known for its commitment to innovation, engineering excellence, and sustainability, BMW has established itself as a benchmark in automotive luxury and performance. The group is dedicated to shaping the future of mobility through cutting-edge technologies like electric and autonomous vehicles, alongside advancements in digitalization and connectivity. BMW is also deeply focused on sustainability, with ambitious goals to reduce CO2 emissions, increase the use of renewable materials, and embrace circular economy principles. With a presence in over 140 countries, BMW Group’s vehicles are synonymous with quality, style, and driving pleasure, making it a prominent player in the global automotive landscape.
