New Vauxhall Insignia Grand Sport vs Mazda 6 vs Skoda Superb

The Vauxhall Insignia has long been a company car favourite, but this new version will need to be great if it’s to fend off these rivals...

Author Avatar
What Car? team
29 Sep 2016 5:0 | Last updated: 14 Jun 2018 0:3

Our verdict

In last place, it’s the Mazda 6. Yes, its engine is strong and impressively frugal, but it is otherwise disappointing to drive and the least practical of our contenders, and it will cost the most to run as a company car, albeit by a small amount.

Credit has to go to Vauxhall for keeping the Insignia Grand Sport’s price so low while still o ering plenty of kit. It’s the cheapest of our trio to run as a company car, and it has the smoothest ride and the most economical engine. Sure, rear head room could be better and it could be sharper to drive, but it’s still one of the better cars in the class.

However, the Skoda Superb remains top of the pile. It’s the most enjoyable to drive and the quietest cruiser; it also has the classiest interior and is easily the most spacious. True, its engine could be quieter and its suspension more supple at low speeds, but it’s still worth the small extra outlay in company car tax over the Insignia.

For all the latest reviews, advice and new car deals, sign up to the What Car? newsletter here

1st – Skoda Superb

New Vauxhall Insignia Grand Sport vs Mazda 6 vs Skoda Superb

For Hugely spacious; classiest interior; tidiest handling; lots of standard kit

Against Gruff engine; lumpy low-speed ride without adaptive suspension

Must-have options Rear seatback releases in boot (£100)

Rated 5 out of 5

Read our full Skoda Superb review

Find a great Skoda Superb deal

2nd – Vauxhall Insignia Grand Sport

New Vauxhall Insignia Grand Sport vs Mazda 6 vs Skoda Superb

For Quietest engine; comfiest ride; cheapest company car; generous standard equipment

Against So-so handling; tightest for rear head room

Must-have options None

Rated 4 out of 5

Read our full Vauxhall Insignia Grand Sport review

Find a great Vauxhall Insignia Grand Sport deal

3rd – Mazda 6

New Vauxhall Insignia Grand Sport vs Mazda 6 vs Skoda Superb

For Strong yet frugal engine; user-friendly infotainment interface

Against Choppy ride; unruly handling; not very well equipped and not many options; shortage of safety kit

Must-have options None

Rated 3 out of 5

Read our full Mazda 6 review

Find a great Mazda 6 deal

Also consider:

Specifications: Mazda 6 2.2 150 SE Nav

Engine size 2.2-litre diesel

List price £23,395

Target Price £22,641

Power 148bhp @ 4500rpm

Torque 280Ib ft @ 1800-2600rpm

0-60mph 8.3sec

Top speed 130mph

Gov't fuel economy 68.9mpg

True MPG 47.3mpg

CO2 emissions 107g/km

Specifications: Skoda Superb 1.6 TDI 120 SE Technology

Engine size 1.6-litre diesel

List price £23,000

Target Price £21,445

Power 118bhp @ 3600-4000rpm

Torque 184Ib ft @ 1600-3250rpm

0-60mph 10.0sec

Top speed 128mph

Gov't fuel economy 62.8mpg

True MPG 47.5mpg

CO2 emissions 110g/km

Vauxhall Insignia Grand Sport 1.6 CDTI 110 Techline Nav

Engine size 1.6-litre diesel

List price £21,220

Target Price £21,220

Power 109bhp @ 3500rpm

Torque 221Ib ft @ 1750-2000rpm

0-60mph 11.3sec

Top speed 127mph

Gov't fuel economy 70.6mpg

True MPG 50.2mpg

CO2 emissions 105g/km

Read more: The best and worst executive cars >


for (var el of document.querySelectorAll('*[id^="-find-a-great"]')) { el.classList.add('btn'); el.classList.add('epsilon'); el.classList.add('btn--green'); el.classList.add('hoverBtn');}for (var el of document.querySelectorAll('*[id^="-find-a-great"] a')) { = "#ffffff"; = "none"; = "none"; = "none";}for (var elBtn of document.querySelectorAll('*[id^="-find-a-great"] a')) { = "#ffffff"; = "none"; = "none"; = "none";}for (var hvrBtn of document.getElementsByClassName("hoverBtn")) { hvrBtn.onmouseover = function() { = "none"; } hvrBtn.onmouseout = function() { = 'none'; }
 if (hvrBtn.querySelectorAll) { as = hvrBtn.querySelectorAll('a'); for (var i = 0; i