Skip advert
Advertisement

Vauxhall Insignia ecoFLEX

Family Vauxhall goes green with eco-friendly upgrades

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

2021 Kia

Sportage

52,874 milesAutomaticDiesel1.6L

Cash £13,524
View Sportage
XC60

2022 Volvo

XC60

48,122 milesAutomaticPetrol2.0L

Cash £26,599
View XC60
Corsa

2021 Vauxhall

Corsa

11,031 milesAutomaticPetrol1.2L

Cash £12,999
View Corsa
Q5

2025 Audi

Q5

15,650 milesAutomaticDiesel2.0L

Cash £32,699
View Q5

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

Renault Clio

Renault Clio

RRP £16,160Avg. savings £3,230 off RRP*Used from £7,195
Kia Sportage

Kia Sportage

RRP £28,065Avg. savings £3,266 off RRP*Used from £14,495
Vauxhall Corsa

Vauxhall Corsa

RRP £19,690Avg. savings £5,308 off RRP*Used from £10,799
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £4,603 off RRP*
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Volkswagen Transporter Sportline brings GTI style to the van world
Volkswagen Transporter Sportline - front

New Volkswagen Transporter Sportline brings GTI style to the van world

The new Volkswagen Transporter Sportline gets a choice of diesel, plug-in hybrid and electric power
News
4 Feb 2026
Some Chinese car brands are doomed to disappear, warns Skoda boss
Skoda Kodiaq - front cornering

Some Chinese car brands are doomed to disappear, warns Skoda boss

Skoda’s sales and marketing boss warns “there will be a consolidation” of the number of Chinese car brands around
News
3 Feb 2026
Government spends £4.7 million on Ford Pumas, helping electric SUV top the sales charts
Ford Puma Gen-E - front tracking

Government spends £4.7 million on Ford Pumas, helping electric SUV top the sales charts

Over 1,200 Ford Puma Gen-E models were registered in January, each eligible for the £3,750 Government grant
News
5 Feb 2026