
Vauxhall Firenza 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.
Couldn't load pickup availability




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:
-
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.
-
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 Firenza rally car
The Vauxhall Firenza, produced between 1971 and 1975, was Vauxhall’s attempt to blend sporty coupe styling with serious performance, taking the fight to rivals like the Ford Capri and Opel Manta. But while the standard Firenza was a solid performer, it was the legendary HP (‘High Performance’) Firenza, also known as the ‘Droopsnoot’, that truly put this car on the map, especially in the world of touring car racing and rallying.
Designed as a sportier version of the Vauxhall Viva HC, the Firenza was available with a range of engines, from modest 1.3-litre and 1.6-litre units up to the 2.3-litre slant-four engine, which was the one to have. Producing around 108 horsepower, this engine gave the lightweight Firenza genuine performance credentials, but Vauxhall wasn’t done yet.
In 1973, Vauxhall unveiled the HP Firenza ‘Droopsnoot’, an aggressive, streamlined version developed with motorsport in mind. Featuring a more aerodynamic nose, a 2.3-litre fuel-injected engine producing 131 horsepower, and upgraded suspension and brakes, this version could hit 0-60 mph in just over 8 seconds, serious performance for a British coupe of the time. The Droopsnoot was built in limited numbers (just 204 units), making it one of the rarest and most desirable Vauxhalls ever produced.
The Firenza’s real impact came on the touring car scene, where it was developed into a serious Group 1 and Group 2 race car. Entering the British Saloon Car Championship (BSCC, later BTCC) and other European touring car events, the Firenza proved to be a capable, high-speed competitor, often battling against the Ford Escort RS2000, BMW 2002, and Alfa Romeo GTV.
Its lightweight body, powerful slant-four engine, and sharp handling made it a serious contender on tight circuits, while its rear-wheel-drive layout ensured it had plenty of oversteer action, making it a favourite among enthusiastic drivers. While it never achieved dominant success like some of its rivals, the Firenza scored podiums and proved that Vauxhall could build a competitive racing coupe.
While Vauxhall was never as heavily involved in factory-backed rallying as Ford or Opel during the 1970s, the Firenza still found its way into privateer rally teams, particularly in the UK and South Africa. The 2.3-litre engine, strong rear-wheel-drive chassis, and durable construction made it a great base for tarmac rally events, where its punchy torque and predictable handling allowed it to take on the likes of the Ford Escort and Opel Kadett GT/E.
One of the most famous rally-built Firenzas was the South African version, where the model saw continued production and development beyond its UK run. Upgraded versions with Weber carburettors, hotter cams, and rally-tuned suspension made it a favourite among privateer teams, who found it to be a rugged and entertaining rally machine.
Despite its limited production numbers and underdog status, the Firenza is remembered as one of Vauxhall’s most exciting performance cars. The Droopsnoot version, in particular, has become a collector’s item, while its impact on touring car and rally history has made it a cult classic among Vauxhall enthusiasts.
In the world of historic racing, the Firenza still makes appearances in classic touring car events, where its aggressive styling, howling slant-four engine, and rear-wheel-drive antics continue to turn heads. It may not have been the most dominant car of its era, but it proved that Vauxhall could take the fight to the best, and look damn good doing it.

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 Glue for your New Windows?

Windscreen Bonding Adhesive - Primerless & Drive within 1 hour

Let customers speak for us
from 6 reviewsNicely 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?
-
Why Polycarbonate Windows?
Find out whyLearn about what polycarbonate windows are, what benefits they offer and why you should use them.
-
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.
-
Our Frequently Asked Questions
Find out moreGet the answers to key questions on products and services, including deliveries, collections and timescales.
Need help with Vauxhall Firenza windows?
We love helping our customers find what they need - we are dedicated to making sure you enjoy your passion to the most.