Skip advert
Advertisement

Vauxhall Astra Twin Port

If you can't bring yourself to switch to diesel, then all is not lost. Vauxhall has also developed a new system for its small petrol engines which increases efficiency and enhances economy by up to six per cent with no loss of performance

With no loss of performance or refinement, most Vauxhall buyers won't even know the Twin Port system has been added to their new car. But they'll find the fuel savings soon stack up - and that's good for the budget and the environment.

If you can't bring yourself to switch to diesel, then all is not lost. Vauxhall has also developed a new system for its small petrol engines which increases efficiency and enhances economy by up to six per cent with no loss of performance. We sampled the Twin Port technology in a prototype Astra ahead of its spring debut. The test model had the same 100bhp 1.6-litre credentials as the existing car, but its separate valves open and shut independently according to throttle load. This creates more efficient combustion, as with petrol direct injection, but is cheaper than these expensive and complex systems.

Advertisement - Article continues below

The engine seems to work perfectly normally, accelerating from 700rpm up to at least 6,000rpm, and the car does not feel any slower than the current one. This isn't only good news for Astra drivers - the system is set to be used on all small petrol engines across the Agila and Corsa ranges, too.

Skip advert
Advertisement

New & used car deals

Vauxhall Astra

Vauxhall Astra

RRP £26,090Avg. savings £5,466 off RRP*Used from £13,895
Peugeot 308

Peugeot 308

RRP £28,280Avg. savings £10,606 off RRP*Used from £10,995
Ford Focus

Ford Focus

RRP £20,955Avg. savings £2,696 off RRP*Used from £6,795
KIA Ceed

KIA Ceed

RRP £19,965Used from £7,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

MG Cyber X will morph into a mini-Mercedes within two years
MG Cyber X design render - front

MG Cyber X will morph into a mini-Mercedes within two years

Boxy small SUV is gearing up for production, and our exclusive images show how the model might look
News
30 Aug 2025
Car Deal of the Day: Ford Puma Gen-E granted ultra-low £132 monthly lease
Ford Puma Gen-E - front action

Car Deal of the Day: Ford Puma Gen-E granted ultra-low £132 monthly lease

The EV grant has made the Ford Puma Gen-E a lot cheaper, and lease customers can cash-in with today’s Deal of the Day
News
29 Aug 2025
Car Deal of the Day: Racy and retro Renault 5 for only £188 a month
Renault 5 - front full width

Car Deal of the Day: Racy and retro Renault 5 for only £188 a month

The Renault 5 is taking the market by storm – and at this price it’s easy to see why. It’s our Deal of the Day for August 30
News
30 Aug 2025