Cobra Classic 40th Edition Bucket Seat

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Cobra Classic 40th Edition Bucket Seat by Cobra Seats. Approval: Road & Track. Brackets included: Seat only. Brand: Cobra Seats.

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Size/Fitting guide

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The Cobra Classic 40th Edition, marking forty years of the shell. Part number Classic-40th.

An anniversary finish

What the 40th marks is the trim rather than the engineering. Underneath it is the Classic shell Cobra have built for four decades, and the fact that it is still in production largely unchanged is the more interesting thing about it.

So you are buying the finish and the badge. On a car being put together properly that is a fair thing to want, and we would rather say so than pretend there is a performance argument.

Size

710mm tall, 480mm wide, 700mm deep, at 6kg, and listed for drivers under 6ft.

Six kilos is genuinely light for a steel framed seat. If you need more shoulder height, the Classic RSR is 820mm in the same family and suits taller drivers.

Specification

Road and Track approved rather than FIA homologated. Steel frame, fixed back, base mount, harness slots for a 4 point belt.

Seat only. Tell us the car and we will match a frame. Cobra frames come with the sliding runner included.

Additional information

Weight	7.0 kg
Dimensions	80 × 60 × 120 cm
Approval	Road & Track
Brackets included	Seat only
Brand	Cobra Seats
Construction	Steel frame seats
Fixing Type	Base Mount
Trim Material	Corduroy, Vinyl
Driver Height	Under 6ft
Driver Waist Size	32" – 36" waist
Mechanism Type	Fixed Back Seats
Headrest	Headrest Included, No Headrest
Height (mm)	710
Width (mm)	480
Base Width (mm)	480
Seat Depth (mm)	700
Seat Weight	6 kg
Lead Time	Made to order, allow 4 to 6 weeks
Protection Type	No head support
Arm Rests	Without armrests
Fixing Bolt Pattern	291mm x 330mm

Cobra seat size guide

Cobra build their competition shells in two widths and their road, reclining and classic ranges in one. Get the width name right and the model choice mostly follows.

How Cobra size their seats

The composite competition shells (Sebring, Suzuka, Imola, Evolution) come as Standard, which we list for a 28 to 32 inch waist, and GT, for 32 to 36. Cobra list the same external dimensions for both, so the difference is in the fit through the hips and shoulders: go by the waist band, not the drawing. The steel-framed Monaco follows the same idea with a Standard, a 32 to 36 and a Monaco GT for 36 to 38.

The reclining Misano, Daytona, Le Mans and Stuttgart are one size each and take a 32 to 38 inch waist. The classic range (Clubman, Cub, Roadster, RS, Interlagos, the Classic itself) is one size and suits most drivers; the exceptions are noted in the table.

Over 6 ftThe Sebring and Nogaro shells are the tall ones, 910 to 935 mm high with the head support set for a long body. The Suzuka Standard, the Monaco and most of the classics suit drivers under 6 ft better.

Which Cobra fits you

Model	Waist band	Driver height	Shell	Approval
Competition, FIA 8855-1999
Sebring T and Sebring LP	Standard 28 to 32 / GT 32 to 36	Over 6 ft	Fibreglass	FIA 8855-1999
Sebring Pro Ultralite	Standard 28 to 32	Over 6 ft	Carbon	FIA 8855-1999 or road and track
Suzuka T	Standard 28 to 32 / GT 32 to 36	Standard under 6 ft, GT all	Fibreglass	FIA 8855-1999
Imola	Standard 28 to 32 / GT 32 to 36	All heights	Fibreglass	FIA 8855-1999 or road and track
Evolution T	Standard 28 to 32 / GT 32 to 36	All heights	Fibreglass	FIA 8855-1999
Monaco M, Monaco Pro, Monaco 40th	32 to 36	Under 6 ft	Steel frame	FIA 8855-1999
Road and track
Nogaro Circuit and Club Sport	32 to 36	Over 6 ft	Fibreglass	Road and track
Sebring T RT, Suzuka T RT, Evolution RT	Standard 28 to 32 / GT 32 to 36	As the FIA versions	Fibreglass	Road and track
Monaco	Standard 28 to 32 / 32 to 36 / GT 36 to 38	Under 6 ft	Steel frame	Road and track
Reclining sport seats
Misano (all versions)	32 to 38	All heights	Steel frame	Road and track
Daytona	32 to 38	All heights	Steel frame	Road and track
Le Mans (all versions)	32 to 38	All heights	Steel frame	Road and track
Stuttgart (all versions)	32 to 38	All heights	Steel frame	Road and track
Classic and retro
Clubman	32 to 36 (3D and 40th: all sizes)	Under 6 ft	Steel frame	Road and track
Classic, Signature, Alpine, GT3, GT4	32 to 36	Under 6 ft	Steel frame	Road and track
Cub, Roadster SR, SS and XL, RS, RSR, Interlagos	All sizes	All heights	Steel frame	Road and track
Headrest, Twin Stripe, GT, CS, Stelvio, Monte Carlo	All sizes	All heights	Steel frame	Road and track

Cobra dimensions

Cobra publish overall height, width, depth and base width for most shells. All figures in mm, weight in kg where Cobra give one.

Model	Height	Width	Depth	Base width	Weight
Sebring T and LP	935	590	690	500
Sebring Pro Ultralite	915	590	610	520	6.9
Suzuka	900	590	730	490
Imola	900	590	730	475	10.3
Evolution	935	555	720	500
Nogaro	910	560	710	490	7.9
Misano	885	590	620	520	11.5
Daytona	865	580	620	530	13.5
Le Mans	820	540	620	540	13.4
Stuttgart	800	520	530	500	13.2
Clubman	850	515	630	500	9.2
Cub	680	460	650	460	8.5
Roadster SR	570	490	700	460	6.3
Roadster SS	550	540	740	460	6.4
Roadster XL	580	525	600	460	8.0
RS	725	490	760	340	8.7
RSR	820	480	760	480	8.5
Interlagos	725	500	760	410	7.0
Classic, Signature, Twin Stripe, Headrest	710	480	700	480	6.0

Width is the widest point of the shell, usually across the shoulder wings on a bucket and across the bolsters on a recliner. Base width is what has to clear the tunnel and the door card.

Measure yourself first

Four numbers decide whether a seat fits. Take them in the clothes you drive in, and write them down before you compare models.

AWaistAround your natural waist, not your trouser size. Trouser sizes usually run an inch or two under the real figure, and the waist bands on our product pages use the real one.

BSeated hip widthSit on a hard chair with your feet flat and measure straight across the widest point of your hips with a rule or a straight edge, not a tape that follows the curve. This is the number that decides whether a fixed shell is tight.

CShouldersStraight across the back at the widest point. Fixed back seats hold you here, so a shell that is narrow at the shoulders is uncomfortable long before it is unsafe.

DHeight and torsoYour height, and if you are over 6 ft whether that is mostly leg or mostly body. A long body needs a taller shell with the head support set higher.

Before you order

Check the car, not only the driver. Transmission tunnels, door cards and B pillars are what stop a wide shell going in. Our seat mounting and fixing points guide covers what to measure.
Side mount and base mount shells are not interchangeable. Which one you need depends on the car and the subframe, so pick the brackets at the same time as the seat.
If you run a HANS or plan to, filter on HANS friendly. The shoulder openings are cut to clear the collar.
FIA seats carry an expiry date on the homologation label. Check what your championship accepts and how long the seat has left, particularly on discounted older stock.

Send us your measurementsWaist, seated hip width, height and the car. We have fitted a lot of Cobra seats and will tell you honestly if the one you have picked is going to be tight. Call 0115 989 3488 or email Sales@GSMPerformance.co.uk.

Waist bands and heights are our product data, checked 6 September 2026. Dimensions are Cobra’s own published figures as carried on our product pages.

Have you written anything about this exact product?
Yes, we have covered this exact product: The Cobra Classic Tartan Range: Every Seat, Eight Tartans, And How To Measure Your Classic For Them, and Customer Question: Can You Add Heating to a Cobra Classic Bucket Seat?. Some of that comes straight from real customer questions, so you are reading answers other buyers actually needed.

Will I fit in this seat?
The maker sizes this seat for drivers under 6ft in height with a 32in to 36in waist. Those are the paper numbers; how a seat actually feels to sit in and climb out of is a different question, and our showroom team sit in these seats every day, so call us with your height and waist and we will give you the honest answer.

What kind of car suits this seat?
Classic and retro vehicles, which is exactly what this shell is designed around. The low-back retro style belongs in a period build, not a modern car, however tempting the weight figure looks. If you are kitting out a modern road or track car, we will point you at the right modern shell instead.

Is this seat FIA approved?
No, this is a road and track day seat rather than a homologated competition seat. For events that require an FIA seat, look at the FIA-approved shells in the range, and ask us if you are unsure what your series needs.

What do I need to fit it to my car?
This is a base-mount seat: it bolts down through its base, the simpler stack for road cars. You will need the car-specific frame, and a sliding runner if you want fore-and-aft adjustment. Our guide on base mount versus side mount walks through the whole stack, and tell us your car and we will quote the full kit.

Does it work with harnesses and a HANS device?
The shell takes 4 point compatible. If you are planning the full seat, harness, and HANS setup, tell us the car and we will spec it end to end.

How do I know it will feel right, not just fit on paper?
Fair question, because makers publish widths and weights, never feel, and two seats with identical numbers can feel nothing alike in the car. We keep the ranges on display in the Nottingham showroom, you are welcome to come and sit in them, and if you cannot get to us, call and describe your build, as the team sit in these seats every day. Our head support measurements guide shows the kind of real-world data we collect.

Availability

Cobra seats are handcrafted in the UK

Each seat is built to the specification you choose, which is why the wait is what it is: on average around 4 to 6 weeks, depending on the trim and options.

Cobra do not allow queue jumping. Orders are produced in the order they are received, so the earlier yours is placed the earlier it is built.

Made to your specification

Because each seat is made for your order rather than picked off a shelf, a made-to-specification seat cannot be cancelled once it is in production, and our special order terms apply.

Working to a date, or not sure which trim to pick? Ring us before you order. Getting the specification right at the start is far easier than changing it later.

In-store displays:

We have a premium range of over 125 seats from brands including: Bimarco, Cobra, Corbeau, Sparco, OMP, Recaro, GP-Race, and Bride to name just a few brands we work with.

Alongside this, we also stock and display HANS devices, harnesses, race-wear, race-suits, FIA helmets and various other safety equipment. If you are looking to visit us to see and try any particular seat or product, please contact us in advance and we’ll be happy to help.

In-Store appointments:

Due to the specialist nature of our services, we do ask that you please contact us in advance to book an appointment. We have multiple slots available each day including selected availability at the weekend.

Working by appointment allows us to dedicate our time with you and provide a personal and professional service. We’ll always ensure you leave with the right equipment for your needs.

Spread the cost with Klarna

Choose Klarna at checkout and pick the plan that suits you. The options and amounts for this product are shown below, and they update when you choose an option above.

Use the purchase power check in the Klarna box for a quick, no-obligation look at what you could be approved for before you order.

How it works at GSM SportSeats4u

1Add the product to your basket and go to checkout as normal.
2Select Klarna as your payment method and choose your plan. Klarna gives you a decision in seconds.
3We dispatch straight away. You pay Klarna on the schedule you chose, and any refund goes back through Klarna.

Your questions, answered by Klarna

Klarna is available to UK residents aged 18 and over. Subject to status. Terms and conditions and late fees apply. Klarna Financial Services UK Limited is authorised and regulated by the Financial Conduct Authority. Full details at klarna.com/uk. Every way you can pay with us is on our payment and finance page, or call 0115 989 3488 and we will talk it through.

Fast delivery lead times:

If you require fast delivery, please contact us in advance of ordering and we’ll happily check stock allocation and availability for you. We carry a large amount of stock at our showroom and across multiple distribution hubs. This allows us to provide immediate dispatch across a huge number of brands from Corbeau and Cobra through to Sparco and OMP. (Does not apply to all items)

Due to the niche market we work in, some products are custom hand made to order, or special order from manufacturers like PCI Racing and Planted Technology. If you want to know how fast a product will be dispatched. Simply drop us a message through our Contact us form.

Addtional lead time notes:

Quick dispatch: Stocked products are dispatched within 24-48 hours with Parcel Force.
Sparco roll cages: We can only deliver these to a registered (LTD) company address.
In-store collection: Please contact us in advance to book an in-store collection appointment.