
Vauxhall Astra mk3 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.
Orders ship in 3 weeks (5 for hard-coated). Delivery in 3–17 business days, depending on location.
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Product information
Race Plastics polycarbonate windows are handcrafted to order by our expert UK team. Designed for motorsport and high-performance use, they’re lightweight, tough, and completely shatterproof—unlike glass or standard acrylics, which can crack under stress.
Our standard windows use 4mm polycarbonate to meet Motorsport UK regulations. We also offer 5mm options that are FIA compliant, plus hard-coated variants for added durability and resistance to scratching.
All windows are available in clear, bronze, or grey tint to suit your vehicle’s design. You can also add window sliders to either or both front doors, depending on your setup.
Window Sliders
Each slider kit is made from the same polycarbonate as your chosen windows. Designed for both driver and passenger sides, these sliders are reliable, practical, and easy to install.
Choose between:
- Three-position locking with a smooth, rattle-free action
- Simple two-position setup for fast and secure use
Sliders are engineered to avoid scratching and sit flush with your window kit. Ideal for improving airflow on track days or road builds. More info is available on our Window Slider Kits page.
Shipping times
Once your order’s confirmed, we’ll get started. Most standard orders are manufactured and dispatched within 3 weeks. Custom or hard-coated versions may take a little longer—we’ll contact you with a lead time. If you need your order by a specific date, let us know and we’ll aim to meet it.
Can I fit the windows myself?
Yes, installation is usually straightforward. There are helpful videos online, and our windows are designed to fit into standard rubber seals unless otherwise noted. If you need bolt-in variants, just contact us.
Can I collect my order?
Collection from our UK facility is available by arrangement. Most international orders are shipped, but we’re happy to sort collection if needed—just get in touch.
Want to change your order?
Reach out as early as possible. We’ll always try to accommodate changes, but if manufacturing has already started, there may be a charge.
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 Vauxhall Astra mk3 rally car
The Vauxhall Astra Mk3, introduced in 1991, had big shoes to fill. Its predecessor had proven itself in both rallying and touring car racing, so expectations were high for this new-generation hatchback. While the Mk3 is often remembered as a dependable family car, it was also a surprisingly strong competitor on the track and rally stages, proving that Vauxhall could still build a performance machine when it mattered.
One of the biggest changes with the Mk3 was its more rounded, aerodynamic design, which brought it in line with the sleeker styling trends of the 1990s. This improved high-speed stability, a crucial factor for its motorsport ambitions. The car was built on a more refined chassis, with improved suspension geometry and a stiffer frame, making it a better platform for racing modifications.
For road-going versions, the Mk3 Astra came with a wide range of engines, but it was the Astra GSi 16v that caught the attention of motorsport teams. Powered by a 2.0-litre 16-valve ‘Red Top’ engine, producing 150 horsepower, it was quick, responsive, and had real potential for competitive racing. This engine was known for high-revving power delivery, strong reliability, and excellent tuning potential, making it an ideal choice for both touring car and rally teams looking for a solid front-wheel-drive contender.
The Astra Mk3 had a strong presence in the British Touring Car Championship (BTCC), where it faced off against some of the biggest names in the racing world, including the Ford Mondeo, Renault Laguna, and BMW 3 Series. Vauxhall, backed by teams like RML (Ray Mallock Ltd), developed the Astra into a serious competitor in the early to mid-1990s.
Despite being front-wheel drive in a field dominated by rear-wheel-drive powerhouses, the Astra held its own with sharp handling, strong acceleration, and a lightweight, agile chassis. The Mk3’s aerodynamics played a role in keeping it stable at high speeds, while the aggressive touring car suspension setup made it razor-sharp through corners.
While the Mk3 Astra didn’t clinch championship titles in the BTCC, it proved to be a reliable and consistent performer, regularly scoring podium finishes and showing that Vauxhall was serious about motorsport. The knowledge gained from these races directly influenced the performance development of later Astra models, especially the dominant Mk4 Super Touring car.
In rallying, the Mk3 Astra had big shoes to fill after the success of the Mk2 in both Group A and Group N competition. Vauxhall continued to push the Mk3 Astra into national and international rallying, particularly in front-wheel-drive categories, where it proved to be a fast and durable option for privateer teams.
The Astra GSi 16v became a popular choice in tarmac rally events, where its nimble chassis, strong low-end torque, and high-revving nature gave it an advantage on tight, twisty stages. Its lightweight construction and durable drivetrain made it a dependable choice for privateer teams, who appreciated its relative affordability and ease of modification.
While it didn’t have the headline success of some four-wheel-drive monsters like the Subaru Impreza or Ford Escort Cosworth, the Astra excelled in front-wheel-drive classes, often battling it out with cars like the Peugeot 306 GTi-6 and Renault Clio Williams. The Astra’s predictable handling, well-balanced weight distribution, and strong engine made it a great platform for entry-level rallying, especially in British and European events.
The Mk3 Astra may not have dominated the rally or touring car scenes, but it proved that Vauxhall was committed to performance. The lessons learned from its competition years helped shape future performance Astra models, and the Mk3 remains a respected competitor in classic racing and rallying circles today.
For motorsport enthusiasts, the Mk3 Astra represents an era of touring car and rally racing where front-wheel-drive hatchbacks fought hard against bigger, more powerful competition. While it wasn’t always the outright fastest car on the grid, it was a true competitor, tough, reliable, and always willing to put up a fight.

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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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.
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