2026 British F4 Testing Campaign

Support Zack’s Formula 4 Testing

Zack is ready to take his next step from karting into professional single-seater racing. Support his British Formula 4 testing campaign and help put him on the path to the 2027 British F4 grid.

Zack Mumba racing at the Club100 Championship

15-year-old racing driver from London  ·  Brentwood Summer Race League Champion  ·  Now raising funds for Formula 4 testing

“From the moment I first sat in a kart, I knew this was my calling. Racing is not just what I do, it’s who I am.”

My name is Zack Mumba. At seven years old I sat in a kart for the first time and immediately knew racing was what I wanted to do. Since then I’ve worked my way through local and national karting competition, winning races and a championship while building my dream of becoming a professional racing driver.
Today, my focus is clear – transitioning from karting to Formula 4.

“Zack is always willing to learn and is a quick, talented driver. He takes feedback on board well and is great to work with.”

James Fletcher

Full story →

As featured by Mercedes-AMG F1 Brentwood Karting Club100
£1,890Raised so far
£15,750Testing target

Why Support Zack?

Zack has already demonstrated the performance, commitment and potential required to progress in motorsport. After eight seasons of competitive racing, including championship success and national-level recognition, he is now ready to take the next step into professional single-seater racing. Supporting Zack means backing a proven young talent at a pivotal stage of his career — while giving your business the opportunity to become part of his journey and connect with a growing motorsport audience.

2025 Brentwood Summer Champion
Featured in Mercedes-AMG F1 commercial
14 A-Final victories
Professional F4 simulator training
Clear pathway to British F4
Strong media and sponsor appeal

What Is Needed?

Zack’s next step into professional single-seater racing requires the opportunity to test, develop and prove himself in a Formula 4 car. The immediate priority is funding for F4 testing sessions, where Zack can gain valuable experience, work with professional teams and coaches, develop his understanding of the car and demonstrate his potential at the next level. We are seeking sponsorship and business partnerships to help cover the costs of testing, including car hire, tyres, fuel, mechanics, coaching and associated track costs.

F4 Car Hire
A race-prepared Formula 4 car with a professional team. Unlike karting, F4 teams supply the car, engineers and mechanics for each test day — the only way to get genuine lap time data and car feel.
Engineering & Tyres
A dedicated race engineer analyses my data between sessions and debriefs after every run. Tyres, fuel and consumables add up fast in a day of high-performance testing.
Driver Development
Professional simulator coaching alongside track testing. Data analysis sessions translate simulator learning into real-world racecraft — what turns raw talent into championship pace.
Fund a Full Test Day

Put Zack in a Formula 4 car for an entire day of professional testing.

£5,250
One complete test day
Race-prepared F4 car hire
Dedicated race engineer & data analysis
Full mechanic and team support
Tyres, fuel and consumables
Professional driver coaching
Circuit hire and team facilities

Partner With Zack

Partnering with Zack is an opportunity for your business to support a young driver with ambition, proven results and a clear pathway into professional motorsport. Your partnership can provide valuable brand exposure through Zack’s racing activities, social media, website, events and sponsor communications, while associating your business with performance, determination, ambition and progression.

National TV Exposure
A 30-race championship spanning 10 weekends at premier UK circuits, with eight rounds supporting the BTCC. Every race is available free-to-air on ITV4 and ITVX.
Car & Suit Branding
Prominent logo placement on the car, race suit, and associated equipment, with enhanced branding opportunities as Zack advances through the championship.
Content & Social
Brand exposure through co-branded “Road to F4” content, monthly features, and race weekend mentions to a growing 1.3K-strong audience.
Monthly Reporting
Monthly sponsor reports with key exposure metrics, race schedules, and results, delivering measurable value and accountability.
Local Partner
£2,500
Full season partnership
  • Name and logo on the Supporters page, linked to your site
  • Logo on equipment where feasible
  • One dedicated Instagram post or reel per month
  • Race-weekend story mentions
  • Monthly sponsor report
See what’s included
Primary Partner
£5,000
Full season partnership
  • Dominant branding on car and race suit
  • Two sponsor content pieces per month
  • Co-branded “Road to F4” progress videos
  • Monthly sponsor report — reach and performance
  • Hospitality passes at a full race weekend
See what’s included

Be Part of the Journey

Every driver needs a team behind them.
Your support will help Zack take the next step from karting into professional single-seater racing, while giving you the opportunity to be part of his journey.