Create your ideal windows below, or contact the team if you have a specific requirement.

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Note: Unless stated, all windows are sized to fit into rubber seals. If you need bolt-in sizing, then please contact us.

Regular price $335.00 USD
Regular price Sale price $335.00 USD
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US orders ship in 3 weeks (5 for hard-coated). Delivery in 3–17 business days, depending on location.

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Product information

Every Race Plastics window is custom-made by our experienced team in the UK. Built for motorsport, these polycarbonate windows are lightweight, shatterproof, and far stronger than glass. Unlike acrylics or Perspex, they won’t crack under pressure—giving you peace of mind when you’re pushing hard.

Our standard spec uses 4mm thick polycarbonate, meeting key racing regulations. If you need more strength, we also offer 5mm FIA-compliant windows and hard-coated options for extra durability and scratch resistance.

Windows come in clear, bronze, or grey tints, so you can match the look to your build. You can also add sliders to either or both front doors, depending on how you want to manage airflow.

Window Sliders

Our slider kits are built from the same high-quality polycarbonate as your main windows. Designed for both driver and passenger sides, they’re smooth, secure, and built to last.

You can choose between:

  • Smooth operation with three fixed positions, no rattle
  • Simple and reliable, with two preset stops

Easy to fit and made to avoid rubbing or scratches, these sliders are ideal whether you need more air on track or better control on the road. For full specs, visit the Window Slider Kits page.

How long does shipping take?

We’ll confirm your order right away. Standard polycarbonate kits are usually built and shipped within 3 weeks. Custom or hard-coated orders may take longer—we’ll reach out to confirm the lead time. If you’ve got a race coming up, let us know and we’ll do what we can to hit your timeline.

Can I install the windows myself?

Yes. Most builds are straightforward and there are plenty of how-to videos online. Unless stated otherwise, our windows are made to fit into standard rubber seals. Need bolt-in versions? Just reach out.

Can I pick up my order?

We usually ship via courier, but yes—collection from our Leeds facility can be arranged. Just drop us a message.

Need to change your order?

Get in touch as soon as you can. We’ll do our best to make changes, but if production’s already started, there may be a cost to amend the order.

  • Expertly crafted in the UK

    All of our windows and sliders are hand made to order by our team in the UK.

  • Motorsport compliant

    Our standard windows are made from UK compliant 4mm Polycarbonate.

  • FIA & hard-coated options

    We also offer FIA compliant 5mm & hard-coated options.

  • Road legal warning

    Always check your local vehicle regulations before fitting.

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The Lancia Beta Coupe rally car

Lancia has a habit of building cars that punch well above their weight, and the Lancia Beta Coupé was no exception. Born in the mid-1970s, it arrived at a time when Italian sports cars were either breathtakingly expensive or ridiculously unreliable, and sometimes both. The Beta Coupé was supposed to change that. It was affordable, stylish, and packed with the kind of sharp handling that made every drive feel like a tarmac rally stage.
Based on the Lancia Beta saloon, the Coupé was smaller, lighter, and much sportier. It had a shorter wheelbase, a lower stance, and an unmistakably Italian design, sleek, elegant, and with just the right amount of aggression. It wasn’t a full-blown exotic, but it looked and felt special, like something that could easily have worn an Alfa Romeo badge instead.
Under the bonnet, the Beta Coupé packed a range of Fiat-derived twin-cam engines, starting from a 1.3-litre unit and going up to a punchy 2.0-litre version. Power ranged from 80 to 120 horsepower, which doesn’t sound like much today, but with the Beta Coupé’s lightweight body, razor-sharp steering, and perfectly tuned suspension, it was more than enough to keep things exciting. This was a driver’s car, not just a fast one. The balance was spot on, the front-wheel-drive setup felt alive, and the Beta had a way of tucking into corners like a well-trained rally car.
Speaking of rallying, Lancia knew their way around the sport, and while the Beta Coupé never saw the same kind of success as the Stratos or the Delta, it did get its moment in the spotlight. The Lancia Beta Coupé 1800 ran in Group 4 rallying, and while it wasn’t as wild as its mid-engine Stratos sibling, it was a seriously capable machine on tarmac rallies, making use of its excellent chassis balance and rev-happy engine to keep up with more powerful competitors.
Then came the Lancia Beta Montecarlo, an offshoot of the Beta Coupé that took things to another level. With a mid-engine layout and a Pininfarina-designed body, it looked the part of a true exotic, and it even found success in Group 5 racing, where it helped Lancia claim a World Championship for Makes title in 1980 and 1981.
But for all its brilliance, the Beta Coupé’s reputation took a hit thanks to one infamous issue, rust. British models, in particular, were plagued with corrosion problems, which led to headlines that tarnished the Beta’s name and even saw Lancia recall and buy back some models in the UK. It was an unfair end for what was otherwise a brilliantly engineered and hugely enjoyable car, but in the court of public opinion, the damage was done.
Today, the Beta Coupé is a rare sight, but for those who know, it’s still one of the most underrated Italian sports cars of its era. It had the soul of a rally car, the handling of a proper sports coupe, and the kind of charisma that only an Italian car can deliver. If you find one today that hasn’t been eaten by rust, you’ve got yourself a hidden gem, a car that proves Lancia could make magic happen, even when the odds were stacked against them.

Thought about a slider kit?

Our easy retro fit window slider kits are the essential addition to your racing windows with standard and advanced kits available.

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Need Glue for your New Windows?

  • Why Polycarbonate Windows?

    Learn about what polycarbonate windows are, what benefits they offer and why you should use them.

    Find out why 
  • Perspex or Polycarbonate Windows?

    Find out which you should use for your race windows, why, and which one will protect you the most whilst racing.

    Find out which one 
  • Our Frequently Asked Questions

    Get the answers to key questions on products and services, including deliveries, collections and timescales.

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