
Opel Manta Coupe 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 Opel Manta Coupe rally car
The Opel Manta Coupe was Opel’s answer to the wave of stylish, fun-to-drive coupes dominating the 1970s and 1980s. Designed to compete with cars like the Ford Capri, Toyota Celica, and even some BMW models, the Manta wasn’t just another sporty coupe, it was a driver’s car with real personality.
First introduced in 1970, the original Manta (A-Series) was a sleek, well-proportioned coupe that immediately stood out with its sharp styling, long bonnet, and wide stance. It was designed with European touring and rallying in mind, blending a balance of sportiness and everyday usability that made it hugely popular. But it was the Manta B, launched in 1975, that truly cemented its place in motoring history.
The Manta B Coupe was a rear-wheel-drive machine with a lightweight, well-balanced chassis, making it an absolute joy to drive. Under the bonnet, Opel offered a range of four-cylinder engines, from 1.2-litre economy units to the more powerful 2.0-litre versions, with power outputs ranging from 55 to 110 horsepower. While that might not sound like much, the Manta made up for it with brilliant handling, a responsive chassis, and a level of agility that made it perfect for spirited driving.
The real fun began when Opel introduced the Manta GT/E, which featured fuel injection, a sportier suspension setup, and a more aggressive look, making it a proper performance model. With tight steering, predictable oversteer, and a lively engine, the GT/E version was a true enthusiast’s car, giving drivers just the right amount of power to play with while keeping the focus on balance and control.
But where the Manta really made its mark was on the rally stage. Competing against the likes of the Ford Escort and Lancia Stratos, the Manta 400 was Opel’s most serious attempt at rallying dominance. Developed with Cosworth, the Manta 400 featured a 2.4-litre twin-cam engine producing over 230 horsepower in competition spec, along with wider arches, lightweight body panels, and a no-nonsense approach to performance. While it didn’t reach the same level of WRC success as some of its rivals, it proved Opel could build a proper, rally-ready sports coupe that could go head-to-head with the best.
Despite its performance credentials, the Manta was also an incredibly stylish car. The sleek coupe design, aggressive stance, and distinctive front-end styling made it stand out from the crowd. It had the kind of timeless appeal that still looks good today, making it a favourite among classic car collectors and enthusiasts who appreciate a well-sorted, rear-wheel-drive sports coupe.
The Manta’s cult status grew in the 1980s, particularly in Germany and the UK, where it became a favourite for tuners, racers, and anyone who wanted a coupe that was fun, affordable, and easy to modify. Even today, well-kept examples are highly sought after, with enthusiasts restoring and modifying them to bring out their full potential.
For those who get behind the wheel of a Manta today, it’s a reminder of a golden era of driving, an era where lightweight, rear-wheel-drive coupes ruled the roads, and every drive felt like a bit of an adventure. It may not have had the badge prestige of some of its competitors, but it had something far more important, character, charm, and a driving experience that puts a smile on your face every time you hit the road.

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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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.
Want some Window Advice?
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Why Polycarbonate Windows?
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Perspex or Polycarbonate Windows?
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Our Frequently Asked Questions
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