
Polycarbonate Motorsport Windows, Kits & More
Since 1986
Welcome to RacePlastics
At Race Plastics, we specialise in polycarbonate car windows designed for serious racers, trackday drivers, and motorsport teams across the globe. With nearly 40 years in the game, we know what matters; performance, durability, and precision fit.
All our polycarbonate car windows are custom-made in our Leeds factory, using the latest tech and hands-on motorsport experience to create products that hold up under pressure. From lightweight racing windows for clubman builds to polycarbonate race windows for pro-level machines, we deliver glazing that cuts weight, handles stress, and stands up to the rig.
If you’re looking to upgrade from glass or replace tired panels, our polycarbonate car window kits are the go-to choice for safer, lighter, track-ready performance.

Polycarbonate Race Windows
We offer a full range of polycarbonate window options, from standard 4mm to FIA-approved 5mm polycarbonate windows, plus bronze tint upgrades for track-ready style and clarity.
See how we can help:
What can Race Plastics do for you?
Race Plastics specialises in manufacturing and supplying high-performance polycarbonate car windows for motorsport, trackdays, and performance builds. Whether you're a clubman racer, a drift enthusiast, or part of a full-blown race team, we offer custom-fit polycarbonate windows that are lighter, tougher, and safer than glass. With nearly 40 years of experience, we’ve built a reputation for precision-made polycarbonate race windows that reduce weight, improve visibility, and meet the demands of high-speed environments.
From standard 4mm polycarbonate car window kits to FIA-approved 5mm windows and bronze-tinted polycarbonate options, everything we make is cut and finished in our Leeds factory using the latest technology. That means you get track-ready polycarbonate car glazing with proper fitment, fast turnaround, and proven performance—no compromises.
So if you're looking to replace heavy glass or upgrade your vehicle for motorsport use, Race Plastics delivers exactly what you need: custom-made polycarbonate car windows that fit your vehicle, your build, and your ambition.
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Looking for custom windows?
We can produce polycarbonate windows and other parts for pretty much any car so contact us if you can't find what you need.

CONVENIENT
Slider Kits
Need a slider kit with your window? We've got you. How about replacement mud flaps for forest racing? Not a problem.

Essential
Mud Flaps
Give your rally car the protection it needs with our range of mud flaps. With different designs and colours available you can get the style you want.

FLEXIBLE
Custom Windows
As well as the vehicles listed on here, we have a vast library of windows for most classic cars - drop us a message and ask! We can also re-engineer any window from an existing one - once again, just give us a shout.
Need some advice?
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Why Polycarbonate Windows?
Find out whyLearn about what polycarbonate windows are, what benefits they offer and why you should use them.
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Perspex or Polycarbonate Windows?
Find out which oneFind out which you should use for your race windows, why, and which one will protect you the most whilst racing.
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Our Frequently Asked Questions
Find out moreGet the answers to key questions on products and services, including deliveries, collections and timescales.
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Small Team, BIG Passion for Racing
Want to know more about us?At RacePlastics, we are passionate about providing the highest quality polycarbonate racing parts that help improve your performance, whilst keeping you safe.
We know how important it is to have the right parts and our goal is to help you get only the best.
We value our customers and our colleagues, and together, we strive to be the window supplier you can rely on.
Can we help?
We love helping our customers find what they need - we are dedicated to making sure you enjoy your passion to the max.