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Originally Posted On: https://flbrmotorsport.com/drivers/cash-felber/
The Rising Star of Formula 4
Cash Felber approaches racing with a completely different energy than his identical twin brother. Where Roman finds pace through precision, Cash forces the issue — attacking braking zones, committing to overtakes, and driving with the kind of controlled aggression that unsettles opponents and creates opportunities that shouldn’t exist.
And that edge is what made his 2025 season so impactful.
Growing up in a side-by-side competitive environment with Roman sharpened Cash’s aggressive instincts early. Their lap times have been separated by tenths or hundredths for years — but their paths to speed are entirely different. Cash battles. Cash improvises. Cash takes risks that only work because he has the racecraft to back them up.
2025 became the year where those instincts translated into real single-seater progression.
2025: The Breakout Year
Cash’s full season in the US Formula 4 Championship showcased exactly why his driving style is so valuable. Every race weekend demanded commitment — and Cash delivered it with the same intensity he’s shown since karting.
His development throughout the year centered around refining aggression into effective racecraft:
- 3rd in Points for the U.S. Formula 4 Junior Series
- Earned 2 wins and 6 podiums
- Finished in the top 10 in each event
Cash’s speed has never been subtle — but in 2025, it became more focused, more intentional, and more sustainable over a full race distance.
Testing Across Elite Circuits
To accelerate his learning curve, Cash completed a robust testing program across major U.S. and European circuits:
- Autobahn Country Club
- Croft Circuit
- Monza
- Silverstone
- Snetterton
Cash’s ability to quickly attack a circuit made early sessions especially productive, often reaching a competitive pace in fewer laps than expected. This rapid adaptability and mature approach to finding speed will prove essential as Cash prepares to take on the British F4 Championship in 2026, where learning new circuits efficiently against seasoned competitors will be crucial to success.
Who is Cash Felber?
When Cash isn’t on track or in the sim, he’s equally disciplined about recovery. He and his identical twin brother Roman have embraced biohacking — using red light therapy, cold plunges, and infrared saunas to maintain peak performance.
Away from racing, Cash hunts for the perfect burger with analytical enthusiasm, unwinds with his Himalayan cats, and channels his need for rhythm and timing behind a drum kit.
The Felber brothers keep their competitive edge sharp shooting hoops or racing Segway go-karts around the neighborhood — a playful nod to their karting roots that makes downtime anything but idle.
Next Step: British F4 in 2026
After a year of growth, maturity, and aggressive refinement in 2025, Cash now moves into the Wera Tools F4 British Championship certified by FIA with Fortec Motorsport.
British F4 demands commitment at high speed and confidence in wheel-to-wheel racing — both areas where Cash thrives. The tight pack racing, the mixed conditions, and the unforgiving nature of UK circuits perfectly match his style.
This isn’t just a step up for Cash.
It’s the kind of environment that showcases what he does best.
