Skip advert
Advertisement

New SEAT Leon ST Cupra 300 Carbon Edition 2018 review

If you’re after a fast estate car the SEAT Leon ST Cupra is a top choice, but fewer than 50 of this limited run are UK-bound

Find your SEAT Leon
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

Even in its advancing years, the SEAT Leon ST Cupra remains a fine choice for those after a fast estate car. We’d argue whether this Carbon Edition model is worth the extra cash, but many will favour it on exclusivity alone. Fewer than 50 will come to the UK, so if you want one you’ll need to act fast.

Advertisement - Article continues below

It’s not uncommon for car makers to launch revenue generating special editions as a model reaches the end of production.

Late last year, SEAT presented the limited run Leon Cupra R – a kit-laden, tuned version of the standard hot hatch. Now it’s the turn of the Leon ST estate, driven here for the first time in Carbon Edition trim.

SEAT Leon ST estate in-depth review

The tweaks are less extensive than those on the Cupra R, but exclusivity is on par. SEAT won’t divulge exactly how many are reserved for British buyers, but we’re told “fewer than 50” will reach UK showrooms. Priced from £35,575, that’s £2,400 more than the 4DRIVE and DSG-equipped model on which it is based.

For your extra cash you get – as the name suggests – plenty of carbon trinkets. Available only in Monsoon Grey, the Cupra 300 Carbon Edition gets carbon fibre side blades, as well as carbon fibre front and rear diffusers. There’s a set of unique 19-inch alloy wheels, and quad-exit exhausts.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Corsa Electric

2021 Vauxhall

Corsa Electric

22,075 milesAutomaticElectric

Cash £10,197
View Corsa Electric
Twingo

2017 Renault

Twingo

31,567 milesManualPetrol1.0L

Cash £6,197
View Twingo
Puma

2023 Ford

Puma

22,366 milesManualPetrol1.0L

Cash £13,700
View Puma
Tiguan

2024 Volkswagen

Tiguan

19,691 milesAutomaticPetrol1.4L

Cash £23,500
View Tiguan

Unlike the Cupra hatch, which recently saw a 10bhp power dip due to the latest WLTP emissions regulations, the estate version retains its 296bhp 2.0-litre turbo engine. The only mechanical alterations for the Carbon Edition, in fact, are the Brembo brakes, which add fierce stopping power to the ST’s performance roster.

Advertisement - Article continues below

Otherwise, this Leon drives just like the standard Cupra. It feels ferociously quick, but with the added security of all-wheel drive, the wagon doesn’t squirm quite like the hatch. It offers traction in spades, with very little body roll through fast corners.

Despite using the older six-speed DSG transmission, the gearbox shifts quickly and smoothly. The short paddles aren’t as tactile as those in some of the SEAT’s rivals, however, and even in manual mode it’ll change cogs automatically as it hits the redline. In Cupra mode, full throttle upshifts are accompanied by a fabricated rasp from the exhaust.

The ride isn’t quite as accomplished as in a Volkswagen Golf R Estate, and refinement – especially on these 19-inch wheels – is particularly poor. Road noise is apparent from little more than town speeds, while rough motorways create an intrusive din. Still, the Cupra-branded bucket seats are supportive and comfortable on longer runs.

Along with all the carbon add-ons, this was our first opportunity to try SEAT’s Audi-inspired digital cockpit dials. While they are easily configurable using the steering wheel-mounted controls, the graphics aren’t as sophisticated and the fonts feel less premium. It’s a shame, because functionality is fantastic, with the ability to show full-screen mapping, trip detail and media info – all in place of the conventional speedo and rev counter.

Elsewhere, quality is good, if (again) a little way shy of the equivalent Volkswagen. The biggest problem, however, is the Golf is ever so slightly cheaper than this limited run Leon, too.

Skip advert
Advertisement
Deputy editor

Richard has been part of the team for over a decade. During this time he has covered a huge amount of news and reviews for Auto Express, as well as being the face of Carbuyer and DrivingElectric on Youtube. In his current role as deputy editor, he is now responsible for keeping our content flowing and managing our team of talented writers.

New & used car deals

Hyundai Tucson

Hyundai Tucson

RRP £29,840Avg. savings £4,628 off RRP*Used from £13,300
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £4,588 off RRP*
Renault Clio

Renault Clio

RRP £16,275Avg. savings £2,638 off RRP*Used from £7,195
Vauxhall Corsa

Vauxhall Corsa

RRP £19,870Avg. savings £5,301 off RRP*Used from £9,630
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Citroen 2CV: icon to be reborn for the electric era, and it’s coming soon
Citroen 2CV exclusive image 2026

New Citroen 2CV: icon to be reborn for the electric era, and it’s coming soon

The planets are aligned! Retro design buzz and rules promoting small EVs will see Citroen's most famous car rebooted
News
30 Mar 2026
Kia EV2 review
Alastair Crooks with the Kia EV2

Kia EV2 review

Cool styling, an efficient powertrain, surprising space - the Kia EV2 is a solid new entry in the small EV market
In-depth reviews
1 Apr 2026
Car Deal of the Day: Lexus LBX is a true junior luxury SUV for just £215 a month
Lexus LBX - front cornering

Car Deal of the Day: Lexus LBX is a true junior luxury SUV for just £215 a month

Small in size but big in character, the Lexus LBX is our Deal of the Day for 30 March
News
30 Mar 2026