Skip advert
Advertisement

Vauxhall Astra GTC BiTurbo review

BiTurbo diesel is now available in the Astra GTC, so how does it stack up against the SEAT Leon FR?

Find your Vauxhall Astra
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

High-performance diesel hot hatches are increasingly popular, so the Vauxhall Astra GTC BiTurbo is wading into competitive territory. Its sculpted design makes it one of the best-looking Astras ever, but the engine does feel a little short on performance. Yet the GTC’s biggest problem is that the accomplished Leon FR TDI SC is £1,670 cheaper.

Advertisement - Article continues below

The Vauxhall Astra GTC now comes with Vauxhall's 192bhp 2.0-litre turbodiesel, but does the BiTurbo diesel suit the swooping curves of the sleek GTC?

The engine has been transplanted straight from the five-door. Yet while that means it shares the title as the most powerful diesel Astra ever produced, the GTC still feels lacklustre – especially when compared with VW Group’s punchy 181bhp 2.0-litre TDI fitted to the SEAT Leon FR and Golf GTD.

Vauxhall Astra GTC review

Using two turbochargers does eliminate the worst of the turbo lag and delivers a purposeful shove lower down the rev range. But as revs build the GTC quickly runs out of steam, making it feel slower than Vauxhall’s claimed performance figures.

The SEAT Leon SC is more refined, and delivers its power with more urgency.

The Astra still handles pretty well, though, thanks to HiPerStrut suspension borrowed from the Insignia VXR. This makes it feel agile and planted, although the firm ride is not too uncomfortable.

Optional FlexRide adaptive dampers allow tweaking to suit the driving conditions. These cost £790 and are worth the investment if you decide to upgrade to 20-inch wheels.

While the flat-bottomed steering wheel and low driving position add to the GTCs sporting credentials, the centre console – lifted straight out of the five-door model – is a little cluttered.

The car’s sleek styling promises much – but although the GTC turns heads, the engine doesn’t feel like it gives a performance that’s worthy of the looks.

Skip advert
Advertisement

New & used car deals

MG MG4

MG MG4

RRP £27,005Avg. savings £6,825 off RRP*Used from £9,113
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £4,644 off RRP*Used from £9,562
Volkswagen Polo

Volkswagen Polo

RRP £14,480Avg. savings £2,084 off RRP*Used from £8,995
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,517 off RRP*Used from £11,250
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Jaecoo 7 recalled: a quarter of all brand’s 2025 UK cars going back to dealers
Jaecoo 7 - front action

Jaecoo 7 recalled: a quarter of all brand’s 2025 UK cars going back to dealers

The Chinese brand has initiated a recall for roughly 7,500 Jaecoo 7 models due to an incorrectly attached wiring harness clip
News
6 Mar 2026
New Dacia Jogger Hybrid 155 review: frugal family car makes tons of sense in town
Dacia Jogger Hybrid 155 - front tracking

New Dacia Jogger Hybrid 155 review: frugal family car makes tons of sense in town

Dacia's MPV goes well with hybrid power, but it can get a bit thirsty on longer trips
Road tests
6 Mar 2026
New Mazda CX-5 2026 review: spacious SUV is a step in the wrong direction
Auto Express news reporter Ellis Hyde standing next to a Mazda CX-5

New Mazda CX-5 2026 review: spacious SUV is a step in the wrong direction

The new CX-5 a fair bit different to the old model, but that's not necessarily a good thing
Road tests
6 Mar 2026