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

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Customise your windows:
£215.00 GBP
£215.00 GBP
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Total price (no additional VAT) Shipping calculated at checkout.

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

Orders are dispatched within 3 weeks, for hard-coated allow 5 weeks.
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Product information

Our polycarbonate windows are hand crafted to order by our experienced UK based team. They are designed to be safe, strong and lightweight, making them ideal for motorsport. They are much stronger than glass and shatterproof, unlike Perspex and other acrylics, so you are well protected whilst driving.

Our standard windows are manufactured from 4mm thick polycarbonate to comply with Motorsport UK regulations, whilst we also offer 5mm FIA compliant and hard-coated options for those looking tougher windows.

All of our windows are available in a choice of clear, bronze or grey polycarbonate so can choose the windows that best suit your car. You also have the option to add window sliders to either one or both of the front door windows depending on your preference.

Window sliders

Upgrade your vehicle with the Race Plastics Window Slider Kit, designed for both driver and navigator sides. Crafted from the same high-quality polycarbonate as your chosen window, these sliders ensure seamless integration and durability. Choose between two locking systems: the Click-Click Bearing Lock for smooth, rattle-free operation with three adjustable positions, or the Split-Pin Lock for a simple, secure, and reliable solution with two preset positions.

Engineered for flawless fitment and effortless installation, our sliders prevent rubbing and scratching, keeping your windows looking sharp. Whether you need maximum airflow on the track or controlled ventilation on the road, this upgrade delivers race-ready performance. For more details, check out our Window Slider Kits.

How long does an order take to ship?

We will confirm receipt of your order straight away and will be in touch if we have any questions regarding your order. Standard polycarbonate orders are usually manufactured and despatched within 3 weeks of the order being placed. Specialist orders - for example if you choose hard-coating plastic - will take longer, but we will contact you and discuss this with you. If you need your order by a certain date then please let us know.

Can I fit the window myself?

Yes, it is straight forward to remove an existing window and install a RacePlastics polycarbonate window. There are plenty of guides on YouTube to help you do this. Unless otherwise stated, all windows are designed to be fitted into rubber seals, please contact us if you require bolt in versions.

Can I collect the order myself?

Yes, we usually courier orders out to our customers, but if you contact us, we can arrange for collection from our Leeds factory.

How can I change my order?

If you need to discuss or change your order in any way, please get in touch with the team at the earliest chance. We will always try to accommodate any changes but costs may be incurred if the manufacturing process has already started.

Key product info:

  • 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.

  • UK road legal warning

    All but bronze & grey tinted front door windows are legal on UK roads.

Not found what you need?

Need a single window, or have a special requirement, no problem. Just let us know what you need.

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The Clan Crusader rally car

The Clan Crusader might not be a household name like a Ford Escort or a Lancia Delta, but in the world of lightweight, rear-engined rally screamers, this little British underdog punched well above its weight. Built in the early 1970s by ex-Lotus engineers, the Clan Crusader was designed to be a pure driver’s car, small, agile, and powered by an engine in the back, just like the rally-dominating Alpine A110.
At its core, the Clan Crusader was a featherweight fighter. With a fibreglass monocoque chassis and a curb weight of just 600kg, it didn’t need crazy horsepower to be quick. Under the rear hatch sat a 998cc Hillman Imp engine, a high-revving, rally-proven little unit that gave the Crusader the perfect power-to-weight balance. What it lacked in outright grunt, it made up for with agility and a near-perfect weight distribution that let it dance through corners like a proper rally car.
Rally teams quickly saw the potential. The Crusader’s lightweight body and Imp-derived running gear made it a natural fit for rallying, especially on tight and twisty tarmac stages where its compact size and nimbleness could outclass bigger, more powerful competitors. In the early ‘70s, the car saw action in club-level and national rally events, where it regularly embarrassed more established names.
One of its biggest strengths was its ability to stick to the road. With its mid/rear-engine layout and low centre of gravity, it had incredible traction, especially on dry tarmac. It didn’t have the brute force of Escorts or Sunbeams, but its Lotus-inspired engineering meant it could carry speed through corners that heavier cars had to brake for. That made it a real underdog threat in its class.
Despite its performance, the Clan Crusader never became a mainstream rally weapon. The company struggled financially, and after only around 350 were built, production came to an abrupt halt. But its impact on rallying and the lightweight performance car scene remained. Those who drove it knew it was something special, an enthusiast’s car in the purest sense, built for the love of driving rather than mass-market appeal.
Today, the Clan Crusader is a rare sight, but its cult following remains strong. Classic car rallies and historic motorsport events still see the occasional Crusader out on the stages, proving that even decades later, this tiny British machine can still put up a fight. If you ever spot one, consider yourself lucky, you’re looking at one of Britain’s best-kept rally secrets.

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 some advice?

  • 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.

    Find out more 

Need help with Clan Crusader windows?

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