Tesla Model X vs Mercedes-Benz GLS-Class
What's the difference?

Tesla Model X

$44,490 - $75,970

2019 price

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Mercedes-Benz GLS-Class

$170,169 - $424,900

2026 price

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Land Rover Discovery Sport

Mercedes-Benz EQ-Class

Mercedes-Benz EQS

Mercedes-Benz G-Class

Mercedes-Benz G63

Mercedes-Benz GLB-Class

Mercedes-Benz GLC-Class

Mercedes-Benz GLE-Class

Mercedes-Benz GLS-Class

Mitsubishi Eclipse Cross

Mitsubishi Outlander

Mitsubishi Pajero

Mitsubishi Pajero Sport

Summary

2019 Tesla Model X

2026 Mercedes-Benz GLS-Class

By Malcolm Flynn

By Mark Oastler

Safety Rating

Electric motor type

Multi-Motor – Mixed Types

Diesel Turbo 6, 2.9L

Vehicle type

Battery Electric

Diesel

Electric range

435 km

7.8L/100km (combined)

Energy consumption

21.8 kWh/100km

Battery capacity

95.00 kWh

Seating

Likes

Big GVM/GCM ratings
Active air suspension
Performance/economy

Dislikes

No ANCAP rating
High purchase price
Intrusive voice activation

2019 Tesla Model X Summary

The idea of a Tesla that can tow sounds about as likely as an astrophysicist with three Olympic gold medals, who also moonlights as a hand model.

The EV brand has blazed a trail for every other mainstream and premium car manufacturer to jump on the electric bandwagon, and today they’ve still got the biggest batteries and most impressive range ratings, while also having the most extensive extensive network of charge stations made up of Superchargers and destination chargers, covering every state and territory.

They’re not perfect though, often displaying niggling build quality issues and production delays for upcoming models. There’s also a degree of uncertainty bred by a founder who flits between the modern-day space race, manufacturing flame throwers and offering to send miniature submarines to rescue stranded children.

But there’s no questioning the overall impact Tesla has had on the automotive industry, along with the incredible brand awareness and aspiration it’s generated from non-enthusiast Joe Average consumers around the world.

The Model X is also rated to tow, with a decent 2250kg braked rating and an integrated tow bar that folds out of sight when not in use, which both fits its SUV character and encourages you to give it a go.

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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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Deep dive comparison

2019 Tesla Model X 2026 Mercedes-Benz GLS-Class

Verdict

After nearly 700km of testing with both cars, it’s fair to say that the Tesla is indeed a capable tow vehicle, provided you keep the distances relatively short and plan around charge station locations.

Overall average - Penrith to Bathurst to Penrith

Fuel and energy consumption will always depend on the driving conditions, which is why we chose different routes for each leg of our testing.

Averaged across the two legs, towing the caravan with the Model X used 101 per cent more energy than without, or halved its driving range, which sounds a bit scary.

The LandCruiser by comparison added 63 per cent on average, which is still a big difference, but matters less in the real world when its big fuel tanks would still give you about 760km of driving range, which can be refilled quickly at any diesel-stocked servo.

So you could do a weekend trip with the caravan from Penrith with one supercharge in Bathurst, but it would’ve been highly unlikely to manage the extra 55km if you were leaving from Sydney CBD.

The bottom line is that there’s plenty of things - like smaller camper trailers - lighter than our caravan that will help the Tesla to do the towing job better right now.

Compared to the ‘Cruiser, the Tesla is a lesson in the benefits of a lower centre of gravity and road-focused handling.

As always, bigger batteries and more recharge points will go a long way to rectifying the Tesla’s towing shortcomings, and I'm sure we'll get there eventually.

But no matter what, its acceleration performance under load is simply excellent.

Thanks to our friends at Avida for making this test possible with the use of the 17-foot Avida Wave Tourer Electric Pop-Top single-axle caravan. They can also be reached on 1300 428 432.

Verdict

The GLS450d impresses as an entry-level grade, as it’s a more family-friendly allrounder than the specialised AMG and Maybach variants. Its combination of a torque-rich diesel 48V hybrid drivetrain, air-cushioned suspension and plush interior are as well suited to luxury urban travel as they are to grand touring, where its heavy towing and generous load-carrying capabilities can shine. Whether it’s worth around $200K drive-away, only those who shop at the top end of town can decide.

Tesla Model X vs Mercedes-Benz GLS-Class What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

Tesla Model X vs Mercedes-Benz GLS-Class
What's the difference?