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

Tiguan

2024 Volkswagen

Tiguan

44,064 milesAutomaticPetrol1.5L

Cash £21,180
View Tiguan
2

2023 Polestar

2

14,681 milesAutomaticElectric

Cash £21,600
View 2
Corsa

2023 Vauxhall

Corsa

29,609 milesManualPetrol1.2L

Cash £11,740
View Corsa
Mokka

2024 Vauxhall

Mokka

25,817 milesAutomaticPetrol1.2L

Cash £14,690
View Mokka

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
Richard Ingram deputy editor Auto Express
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

Nissan Qashqai

Nissan Qashqai

RRP £27,435Avg. savings £6,350 off RRP*Used from £9,960
Hyundai Tucson

Hyundai Tucson

RRP £29,840Avg. savings £4,954 off RRP*Used from £12,078
Audi A3

Audi A3

RRP £26,310Avg. savings £2,554 off RRP*Used from £10,980
Renault Clio

Renault Clio

RRP £16,175Avg. savings £4,231 off RRP*Used from £7,270
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Polestar 2 will ‘beat’ BMW i3, according to dynamics boss
Polestar 2 - exclusive image

New Polestar 2 will ‘beat’ BMW i3, according to dynamics boss

The new Polestar 2 is set to morph into a true sports saloon – with strong emphasis on the sporty side of things
News
29 Sep 2026
Cupra Raval vs Renault 5: classy electric superminis go head-to-head
Cupra Raval vs Renault 5

Cupra Raval vs Renault 5: classy electric superminis go head-to-head

The sporty Cupra Raval is the first of the VW Group’s electric superminis on sale, but can it get the better of the retro-themed Renault 5
Car group tests
29 Sep 2026
Radical new Citroen C4 Picasso to make MPVs cool again
Citroen C4 Picasso - exclusive image

Radical new Citroen C4 Picasso to make MPVs cool again

Citroen is going back to what it does best: new ELO-inspired MPV could spawn family of family-friendly models
News
28 Sep 2026