For years, BMW Carbon Fiber has been the benchmark for lightweight construction. The i8, the M cars – carbon weave panels became an aesthetic and performance badge of honor. But BMW is now embarking on a radical new move: replacing carbon fiber with BMW Flax Based Composites.
It might seem strange at first—plant fibers substituting a material as sophisticated as carbon fiber—but this is no green experiment. It’s a strategy to reduce emissions, lower manufacturing costs, and inject a new design point to upcoming models like the BMW M4.
Why BMW is Moving Past Carbon Fiber
The issue with carbon fiber is easy. It’s light and tough, but it takes enormous energy to make it. Recycling is difficult, and it has a large environmental footprint. Flax, in contrast, is naturally grown, renewable, and reduces emissions by as much as 85 percent during manufacturing.
So whereas carbon fiber was perhaps the ultimate high-tech material of the previous decade, flax composites may define the next.
From Track to Road
BMW did not simply introduce this material into production vehicles without experimentation. The company tested flax composites in motorsport initially, such as Formula E and the BMW M4 GT4. Roofs, diffusers, and in-car panels were stressed to breaking point on track. The outcome? They performed magnificently.
That’s why production models of the BMW M4 will likely soon have flax parts. It’s the same “track-to-road” cycle that BMW has employed all along—test on the track, optimize for the dealership.
What Flax Brings to the Table
In addition to its ecological charm, flax composites also possess some special benefits:
They’re lighter in some applications than BMW Carbon Fiber.
They provide a unique texture that designers can utilize for a warmer, more natural aesthetic in interior spaces.
And as they are plant-based, recycling and repurposing them at the end of the life of a car is a lot easier.
Simply put, BMW has discovered a solution to make its cars lighter, more eco-friendly, and yet just as robust.
What It Means for Enthusiasts
For aficionados, the BMW M4 continues to stand as the badge of performance purity. But now it’s also designed to be a trailblazer in sustainable innovation. The drivers won’t sacrifice the sharp dynamics or the aggressive personality—they’ll just have a car more aligned to the conditions of the world we live in today.
And for those curious to know how BMW has changed, DailyRevs provides picture galleries of all BMW vehicles. From the old classics to the new M cars, the galleries show the larger picture of how the brand continues to reinvent itself—flax composites and all.
The Road Ahead
BMW’s move to flax over carbon fiber is more than a technological upgrade. It’s a proclamation that high performance and sustainability can coexist. With the BMW M4 paving the way, the automaker is once again setting the tone for what the future of performance vehicles should be.













