
MG MGB GT Polycarbonate Windows
Create your ideal windows below, or contact the team if you have a specific requirement.
Customise your windows:
Note: Unless stated, all windows are sized to fit into rubber seals. If you need bolt-in sizing, then please contact us.
Shipping calculated at checkout.
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.
Key product info:
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Expertly crafted in the UK
All of our windows and sliders are hand made to order by our team in the UK.
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Motorsport compliant
Our standard windows are made from UK compliant 4mm Polycarbonate.
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FIA & hard-coated options
We also offer FIA compliant 5mm & hard-coated options.
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Road legal warning
Always check your local vehicle regulations before fitting.
Not found what you need?
Need a single window, or have a special requirement, no problem. Just let us know what you need.
The MG MGB GT rally car
Few cars capture the spirit of classic British motoring quite like the MG MGB GT. It wasn’t just a sports car, it was an icon, a car that brought performance and style to the masses without the price tag of an Aston Martin or Jaguar. First introduced in 1965, the MGB GT was the coupe version of the hugely popular MGB roadster, offering a fixed roof, a more refined interior, and grand touring appeal while still delivering that raw, mechanical driving feel that made it a favourite among enthusiasts.
Unlike the open-top MGB, the GT was designed with long-distance driving in mind. The roofline, styled by Pininfarina, gave it a sleek, fastback silhouette that set it apart from its convertible sibling. The enclosed cabin made it more practical too, offering better weather protection, improved aerodynamics, and even a usable rear seat, well, usable if you didn’t mind squeezing into a tight space.
Under the bonnet sat a 1.8-litre, four-cylinder engine producing around 95 horsepower. It wasn’t blisteringly fast, but thanks to the car’s lightweight construction, well-balanced chassis, and rear-wheel-drive setup, the MGB GT was a joy to drive. It had enough power to be entertaining, but it was the handling that made it special. With a low centre of gravity, sharp steering, and a predictable nature, it felt alive in the corners, making twisty backroads its natural habitat.
The MGB GT wasn’t just fun, it was durable. The simple, robust mechanicals meant it could be maintained with basic tools, and it quickly earned a reputation as a reliable, no-nonsense sports car that could be driven hard without falling apart. It wasn’t immune to rust (what classic British car is?), but mechanically, it was a workhorse.
The GT also made a name for itself in motorsport. While it wasn’t built as an out-and-out racer, it found success in endurance events, proving that it could handle long distances at speed without breaking down. Privateer teams campaigned it in rallies and circuit racing, taking advantage of its nimble handling and solid construction. It might not have been the quickest thing on the track, but it was consistent, easy to drive on the limit, and, most importantly, fun.
One of the MGB GT’s most famous variants was the MGB GT V8, introduced in 1973. With a 3.5-litre Rover V8 shoehorned under the bonnet, this version transformed the character of the car, adding serious straight-line performance to its already impressive handling. Sadly, it was short-lived, with production ending in 1976, but it remains one of the most sought-after versions today.
For many, the MGB GT was the perfect blend of usability and excitement. It was a sports car you could drive every day, with enough comfort for long journeys and enough character to make every drive feel special. Even now, decades after production ended, it still holds a special place in the hearts of classic car enthusiasts. It represents an era when sports cars were simple, engaging, and built for the love of driving.
Owning one today is about more than just having a classic car, it's about experiencing a piece of motoring history. The MGB GT isn’t just something to admire in a garage; it’s a car that begs to be driven, reminding you of a time when driving was all about feel, sound, and connection to the road.

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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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Let customers speak for us
from 7 reviewsVery helpfull
Nicely finished, very well packed, arrived on time and great value. Thanks!
Windows are easy to fit and look good
Would highly recommend Race plastics. I have used them now on 3 occasions, their products and their customer service are the best I have used, Thank you R.P....
Perfekt fitting, fast delivery.
Thank You.
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