
Land Rover Discovery 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.
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:
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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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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.
The Land Rover Discovery MK3 rally car
Some SUVs are built for the school run. Others, like the Land Rover Discovery Mk3, are built to climb mountains, cross deserts, and wade through rivers, and still be comfortable enough to take the family out for dinner afterward. Launched in 2004, the third-generation Discovery wasn’t just an update, it was a complete reinvention, a blend of rugged off-road toughness and modern luxury, making it one of the most capable and versatile 4x4s of its time.
From the outside, the Mk3 Discovery looked more refined and upmarket than its predecessors. It had a more squared-off, modern design, but don’t let that fool you, this was still very much a Land Rover underneath. The high ground clearance, short overhangs, and serious approach angles made sure it could still tackle rocky trails and muddy fields with ease. Whether in the urban jungle or the actual jungle, the Discovery felt right at home.
Under the bonnet, the Mk3 came with a choice of proper powerplants. The 4.4-litre Jaguar-sourced V8 was a smooth operator with plenty of grunt, but the real star was the 2.7-litre TDV6 diesel. It had torque for days, making it ideal for towing, off-roading, and long-haul adventures. Paired with a six-speed automatic or manual gearbox, it provided strong pulling power, solid reliability, and surprisingly decent fuel efficiency for a heavy 4x4.
But what really set the Mk3 apart was its technology. This wasn’t just a rugged off-roader, it was one of the most advanced SUVs of its era. Land Rover introduced the Terrain Response system, a game-changer for both experts and amateurs. With a simple dial, you could choose settings for mud, sand, snow, rocks, or tarmac, and the car would automatically adjust the suspension, traction, and throttle response to suit. It was like having an off-road driving instructor built into the dashboard.
The Discovery Mk3 also introduced an independent air suspension setup, which made it shockingly comfortable on the road while still providing superb articulation and ground clearance off-road. It was a true all-rounder, capable of tackling extreme terrain yet refined enough for long motorway drives without breaking a sweat.
Inside, it was built for adventure and luxury in equal measure. The three-row seating setup meant it could comfortably carry seven adults, and the cabin was solidly built, packed with premium materials, and filled with practical touches. There was enough space for luggage, gear, dogs, and everything in between. Whether you were heading to the Alps, the Outback, or just the local supermarket, the Discovery felt ready for anything.
In real-world use, the Discovery Mk3 became a legend among overlanders, farmers, and explorers. It was the kind of 4x4 that you could load up with camping gear, point towards the horizon, and just keep driving until the road ran out, because when it did, the Discovery wouldn’t care. It would just keep going.
Despite its off-road pedigree, the Discovery Mk3 was also a hit in the luxury SUV market, proving that a proper, go-anywhere 4x4 didn’t have to be rough around the edges. It could compete with the BMW X5 and Mercedes ML-Class in comfort while leaving them for dead the moment the road turned into a trail.
Today, the Discovery Mk3 is still a favourite among Land Rover enthusiasts, known for its uncompromising off-road ability, solid build, and timeless design. It’s not the cheapest SUV to maintain, but for those who love proper 4x4s, there’s still nothing quite like it.
If you ever get behind the wheel of one, don’t be surprised if you suddenly feel the urge to drive across a continent. Because that’s what the Discovery Mk3 was made for. Adventure. Anywhere, anytime.

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.
Need some advice?
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Why Polycarbonate Windows?
Find out whyLearn about what polycarbonate windows are, what benefits they offer and why you should use them.
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Perspex or Polycarbonate Windows?
Find out which oneFind out which you should use for your race windows, why, and which one will protect you the most whilst racing.
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Our Frequently Asked Questions
Find out moreGet the answers to key questions on products and services, including deliveries, collections and timescales.
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