Mercedes-Benz GLS-Class vs GWM Tank 500

What's the difference?

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Mercedes-Benz GLS-Class
Mercedes-Benz GLS-Class

$170,169 - $424,900

2026 price

GWM Tank 500
GWM Tank 500

$63,990 - $78,490

2026 price

Summary

2026 Mercedes-Benz GLS-Class
2026 GWM Tank 500
Safety Rating

Engine Type
Diesel Turbo 6, 2.9L

Inline 4, 2.0L
Fuel Type
Diesel

Unleaded Petrol/Electric
Fuel Efficiency
7.8L/100km (combined)

2.1L/100km (combined)
Energy consumption

27.2 kWh/100km
Electric range

120 km
Battery capacity

37.11 kWh
Seating
7

5
Dislikes
  • No ANCAP rating
  • High purchase price
  • Intrusive voice activation

  • Some body-roll
  • Intrusive driver-assist tech
  • Fuel use not as good as hoped
2026 Mercedes-Benz GLS-Class Summary

The ‘Upper Large SUV over $120K’ segment of the Aussie new-car market is what you might call the top end of town, not only in terms of the extravagant models available but also their purchase prices, which stretch well into six figures and require monthly lease payments that rival home mortgages.

It’s where you’ll find some of the most prestigious marques in the automotive world including Rolls-Royce, Aston Martin, Bentley, Ferrari, Lamborghini, Range Rover, Lexus and BMW. And, of course, Mercedes-Benz with its big GLS which represents the flagship of the German manufacturer’s SUV fleet.

It was given a refresh in 2023 with cosmetic and multimedia upgrades along with powertrain enhancements, but there have only been minor changes since then. We were recently entrusted with the keys to the latest GLS to see if the ‘S-Class of SUVs’ leaves any room for improvement.

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2026 GWM Tank 500 Summary

The arrival of the GWM Tank 500 Ultra PHEV is noteworthy because it’s the first plug-in hybrid Tank model in Australia.

It’s also a major event for the Aussie adventure-travel community because it’s a plug-in hybrid 4WD with five seats, high- and low-range gearing, and a front, centre and rear diff lock.

The Tank 500 PHEV gets more power and torque than its hybrid stablemate, offers about 120km electric-only driving range (listed), and it can be used as a 6kW mobile power station (V2L) at your campsite. Towing remains at 3000kg.

There’s a lot in this Tank’s favour: it’s a body-on-ladder-frame chassis large 4WD with a packed standard features list and real off-road adventure potential.

All of that – and more – for under $80 grand.

But does the plug-in set-up add anything substantial in terms of daily driveability or does it simply make this Tank an $80,000 camp-site generator?

Read on.

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Deep dive comparison

2026 Mercedes-Benz GLS-Class 2026 GWM Tank 500

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