Skip advert
Advertisement

Vauxhall Insignia ecoFLEX

Family Vauxhall goes green with eco-friendly upgrades

Overall Auto Express rating

4.0

How we review cars
Find your Vauxhall Insignia
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

Vauxhall has done a fantastic job of upping the Insignia’s efficiency. Not only are the fuel economy and CO2 emissions better than those of its arch-rival, the Mondeo ECOnetic, but it trumps the Ford in terms of straight-line performance, too. As always with eco sub-brands, though, it begs the question: why hasn’t Vauxhall applied these changes as standard across the entire range?

Advertisement - Article continues below

Vauxhall is cleaning up its act – with an even greener version of the award-winning Insignia. The ecoFLEX variant is designed to offer all the refinement and quality of the standard car, but with reduced running costs and less of an environmental impact.

The ecoFLEX is available with only one engine, but the 158bhp 2.0 CDTI turbodiesel is the pick of the range. It rides 10mm lower than the standard model, while flat panelling on the underbody helps to reduce aerodynamic drag. Longer gear ratios and low-rolling-resistance Michelin tyres are also fitted – and the result is that economy and emissions are much better.

Video: watch CarBuyer's video review of the Vauxhall Insignia

[[{"type":"media","view_mode":"content_narrow","fid":"68338","attributes":{"alt":"","class":"media-image"}}]]

Combined returns of 54.7mpg represent a 10 per cent improvement over the regular car’s. Meanwhile, a CO2 output of 136g/km not only puts the ecoFLEX in the second lowest benefit-in-kind car tax band for any diesel, but also saves private owners £25 a year in road tax over the 2.0 CDTI.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Sportage

2020 Kia

Sportage

52,281 milesAutomaticDiesel2.0L

Cash £16,693
View Sportage
Polo

2021 Volkswagen

Polo

21,375 milesManualPetrol1.0L

Cash £14,906
View Polo
HS

2023 MG

HS

3,542 milesAutomaticPetrol1.5L

Cash £21,642
View HS
Tucson

2020 Hyundai

Tucson

30,497 milesAutomaticPetrol1.6L

Cash £17,935
View Tucson

Amazingly, though, Vauxhall’s quoted performance figures are no different to the regular model’s. That means 0-60mph in 8.9 seconds and a 135mph top speed – not bad given the car’s eco credentials.

As you would expect, the changes have been blended seamlessly into the Insignia package – the differences are barely noticeable. Grip in tight corners is strong, despite the slightly harder-compound rubber, and while the steering doesn’t offer the feedback of a Ford Mondeo it is direct and the model still handles well.

What’s more, the lower ride height has little effect on the Insignia’s supple suspension. The only detectable change is a slight increase in road noise – although the car is so well insulated to begin with that this is still far from intrusive.

The ecoFLEX upgrades carry a £470 premium over every trim level, but they’re not available on the SRi. This means prices range from £19,600 – nearly £2,000 more expensive than the cheapest VW Passat Bluemotion – all the way up to £24,950 for our flagship Elite. The latter has sat-nav, leather upholstery and electric seats. However, the extra outlay should soon be recouped, especially if you drive a company car.

Rival: Mondeo ECOnetic
High gearing can make the Ford feel sluggish, and it’s costly compared to rivals. But factor in the superb build, space and handling, and it comes highly recommended.

Skip advert
Advertisement

New & used car deals

Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £1,848 off RRP*Used from £7,250
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £4,364 off RRP*Used from £9,709
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £5,924 off RRP*Used from £11,964
Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £5,115 off RRP*Used from £14,695
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Citroen is plotting a new 2CV – but the risks are huge
Citroen 2CV retro render

Citroen is plotting a new 2CV – but the risks are huge

We talk to Citroen bosses on plans to reboot its icon – and do they go retro or futuristic?
News
8 Jun 2025
New Kia Sportage breaks cover and it’s sleeker than ever
Kia Sportage - front

New Kia Sportage breaks cover and it’s sleeker than ever

Full specification and details have been announced for the UK version of Kia’s big-selling mid-size SUV
News
4 Jun 2025
Best mid-size SUVs to buy 2025 - our expert pick of the top options
June 2025 Best mid-size SUVs

Best mid-size SUVs to buy 2025 - our expert pick of the top options

Mid-size SUVs are hugely popular in the UK, and these are the very best of the current crop
Best cars & vans
4 Jun 2025