If you’re looking for a full-size luxury SUV in Australia that combines premium comfort, strong performance, cutting-edge technology, and genuine seven-seat practicality, the Mercedes-Benz GLS is one of the top choices. Often called the “S-Class of SUVs,” the GLS offers a refined driving experience, powerful engine options, and an ultra-premium cabin that feels like a high-end lounge on wheels.
In the Australian market, the Mercedes GLS competes directly with the BMW X7, Audi Q7/Q8, Range Rover, and Lexus LX, but the GLS has its own charm: it delivers a balance of luxury and usability that’s difficult to match.
In this detailed guide, we’ll explore everything you need to know about the Mercedes-Benz GLS in Australia—including variants, features, interior comfort, engine performance, fuel economy, safety, pricing, and whether it’s worth buying in 2025.
Overview: What is the Mercedes-Benz GLS?
The Mercedes-Benz GLS is a flagship full-size luxury SUV designed for buyers who want premium comfort with real family practicality. Unlike smaller luxury SUVs, the GLS is engineered to carry 7 adults comfortably (depending on seating configuration) while offering high-end materials and advanced driver assistance systems.
Key highlights of the GLS include:
- 7-seat configuration (with optional captain seats in some variants)
- Premium cabin with Mercedes MBUX infotainment
- Powerful engines including mild-hybrid and performance options
- AIRMATIC air suspension for comfort
- High-tech safety systems
- Strong road presence and prestige
For Australia, the GLS is particularly attractive because it handles long-distance road trips well and offers enough space for family travel, luggage, and comfort—even on rougher roads.
Mercedes GLS Variants in Australia
Mercedes-Benz typically offers the GLS range in Australia with multiple trims depending on model year and availability. Common variants include:
1) Mercedes-Benz GLS 450 4MATIC
This is often the most popular GLS variant because it offers a strong mix of performance, luxury, and value.
Key features:
- 3.0L turbocharged inline-6
- Mild-hybrid system (EQ Boost)
- 4MATIC all-wheel drive
- Air suspension
- 7 seats
2) Mercedes-AMG GLS 63 4MATIC+
This is the high-performance flagship for buyers who want a luxury SUV with supercar-level power.
Key features:
- 4.0L twin-turbo V8
- AMG tuning, exhaust, and styling
- High-performance brakes and suspension
- More aggressive interior finish
Note: Availability and trim details may vary by state, dealer allocation, and model year in Australia.
Mercedes GLS Price in Australia (What to Expect)
The GLS sits in the premium segment, so pricing is on the higher side. In Australia, the GLS price generally starts in the $200,000+ AUD range depending on trim and options, while the AMG GLS 63 can go significantly higher.
Factors that affect GLS pricing in Australia:
- Variant (GLS 450 vs AMG GLS 63)
- Optional packages (AMG Line, tech pack, comfort pack)
- Interior upgrades (Nappa leather, premium trims)
- Wheel upgrades and paint choices
- On-road costs (stamp duty varies by state)
Pro tip: In Australia, Mercedes options can add a lot to the final price. Always ask the dealer for a full quote including on-road costs in your state (NSW, VIC, QLD, WA, SA, etc.).
Exterior Design: Big, Bold and Premium
The Mercedes GLS looks exactly like what it is: a flagship luxury SUV. It has a tall stance, wide body, and a front design that gives it strong road presence—especially in Australia where larger SUVs are common.
Exterior highlights:
- Signature Mercedes grille
- LED headlamps with premium lighting signature
- Smooth side profile with strong shoulder line
- Large alloy wheels (varies by trim)
- Roof rails for added practicality
- Power tailgate for convenience
In Australia, many GLS owners prefer darker premium colours like Obsidian Black, Selenite Grey, and Nautic Blue, but the GLS also looks stunning in brighter metallic finishes.
Interior & Cabin: The “S-Class of SUVs” Feel
Step inside the GLS and it becomes clear why Mercedes markets it as an S-Class alternative. The cabin feels rich, modern, and extremely comfortable—especially for long Australian road trips.
Cabin highlights:
- High-quality leather and soft-touch materials
- Premium ambient lighting
- Large digital displays (MBUX dual-screen layout)
- Excellent sound insulation
- Heated and ventilated seats (variant dependent)
- Massive panoramic sunroof
Space and seating
The GLS is designed to be a true 7-seater, not a “small third-row” SUV.
- First row: Very spacious with excellent visibility
- Second row: Comfortable for adults, with good legroom
- Third row: Usable for adults on shorter trips; great for kids for long trips
The GLS is ideal for:
- Large families
- Luxury rideshare/airport transfers
- Business owners
- Road trip lovers
- Buyers who want Range Rover-like luxury with Mercedes refinement
Boot Space & Practicality
Australian buyers often choose SUVs for practicality, and GLS delivers big time.
Cargo capacity benefits:
- Boot space is generous even with 3 rows
- Folding third row gives a large luggage area
- Folding second row turns it into a near “van-like” cargo space
Perfect for:
- Family luggage
- Golf bags
- Camping gear
- Airport runs
- Business use
Technology & Infotainment (MBUX)
Mercedes’ MBUX infotainment system is among the best in the market. It’s fast, responsive, and packed with features.
MBUX highlights:
- Dual large screens (instrument + infotainment)
- Touchscreen + steering controls
- Voice command (“Hey Mercedes”)
- Navigation (Australia maps)
- Smartphone integration (Apple CarPlay/Android Auto)
- Premium sound system (depending on variant)
For Australian drivers, the navigation and voice control are particularly useful on long drives or in city traffic.
Engine, Performance & Driving Experience
GLS 450 Performance
The GLS 450 offers a strong mix of comfort and performance. The inline-6 engine with mild-hybrid support delivers smooth acceleration and refined cruising.
Driving feel:
- Smooth and quiet
- Effortless overtaking on highways
- Comfortable in city driving
- Stable at high speeds
AMG GLS 63 Performance
This is for those who want the most powerful GLS experience.
Driving feel:
- Brutal acceleration
- AMG exhaust note
- Sporty handling for a big SUV
- Strong braking performance
Even though it’s large, the GLS feels surprisingly confident due to advanced suspension and all-wheel drive.
Suspension & Ride Comfort (Perfect for Aussie Roads)
One of the best things about the GLS is its ride comfort. Many variants come with AIRMATIC air suspension, which makes a massive difference on Australian roads—especially when you encounter rough patches, uneven surfaces, or long highway stretches.
Why air suspension matters:
- Absorbs bumps better than standard suspension
- Adjusts ride height
- Improves comfort for passengers
- Enhances stability at speed
Fuel Economy & Running Costs
The GLS is a large luxury SUV, so it won’t be as fuel-efficient as smaller SUVs. However, the mild-hybrid tech helps improve efficiency during stop-start traffic and cruising.
Fuel economy depends on:
- Engine type
- Driving style
- City vs highway use
- Load (passengers + luggage)
- Tyre and wheel size
For Australian conditions:
- Expect higher consumption in city traffic
- Highway cruising is more efficient
- AMG variants will naturally use more fuel
Tip: If you drive mainly in the city, fuel costs will be higher—so budget accordingly.
Safety Features in Mercedes GLS
Safety is a major priority in Australia, and GLS includes advanced safety technology.
Common safety features:
- Autonomous Emergency Braking (AEB)
- Adaptive Cruise Control
- Blind Spot Monitoring
- Lane Keep Assist
- 360-degree camera
- Parking sensors
- Driver attention monitoring
- Multiple airbags
The GLS is built to protect passengers with strong structural safety and modern driver assistance systems.
Mercedes GLS vs BMW X7 (Australia Comparison)
The most common comparison in Australia is GLS vs BMW X7.
Mercedes GLS strengths:
✅ More “luxury lounge” comfort
✅ MBUX infotainment is very modern
✅ Excellent ride quality
✅ Strong prestige and premium feel
BMW X7 strengths:
✅ Slightly sportier steering feel
✅ Strong engine lineup
✅ BMW iDrive is also excellent
If your priority is maximum comfort, GLS often wins. If you want a more sporty drive, X7 can be attractive.
Mercedes GLS Ownership in Australia
Warranty & servicing
Mercedes Australia typically offers warranty coverage depending on model year and policies. Many owners also choose prepaid service plans.
Resale value
The GLS generally holds value well in the luxury segment, especially if:
- It’s well maintained
- Full service history is available
- Low kilometres
- Popular colour combinations
Insurance
Insurance for GLS is premium-level. AMG models will cost more.
Should You Buy the Mercedes GLS in Australia?
Buy the GLS if you want:
- True 7-seat luxury SUV
- Premium comfort and technology
- Strong engine performance
- Smooth long-distance travel
- High prestige and road presence
Avoid it if:
- You want low running costs
- You mainly drive in tight city parking spaces
- You prefer smaller SUVs
Final Verdict: Is Mercedes GLS Worth It?
The Mercedes-Benz GLS is one of the best full-size luxury SUVs available in Australia. It delivers a premium cabin, powerful performance, advanced tech, and genuine practicality. Whether you’re doing school runs in Sydney, long road trips across Queensland, or business travel in Melbourne, the GLS offers comfort and confidence in every situation.
If your budget allows and you want the most premium family SUV experience, the GLS is absolutely worth considering.