Designed to target the US market, the Mercedes-Benz's flaghsip full-size luxury SUV was introduced back in 2006.
It remains one of the benchmark luxury SUVs in the US, while enjoying sales success in foreign markets, including our own, thanks to its goodlooking design, a luxurious interior and a smooth-running line of V6 engines.
There's a V8 option for the GLS63 AMG or the GLS 600 Maybach, too.
The line-up currently starts at $191,200 for the GLS-Class GLS 450 D 4Matic and ranges through to $424,300 for the range-topping GLS-Class GLS 600 4Matic.
GLS exterior colours include Polar White (solid) and a variety of metallics including Obsidian Black, Selenite Grey, High-Tech Silver and Sodalite Blue. Also available is the optional 'MANUFAKTUR' range of prestige paint colours available at extra cost.
The GLS450d and AMG GLS63 models come standard with seven seats in a 2-3-2 arrangement. The ultra plush Mercedes-Maybach GLS600 has no third row of seating and is instead available as either a four-seater with two sumptuous executive rear seats, or as a five-seater with rear seating for three.
The GLS interior is spacious and opulent with a panoramic sunroof enhancing the airy and open feel, along with optimised rear leg and headroom to ensure all passengers travel in comfort.
The entry-level GLS450d's standard equipment includes 22-inch AMG multi-spoke alloy wheels, AMG Line styling enhancements, multi-beam LED headlights, panoramic sunroof, seven seats with front seat heating/cooling and heated rear seats, four-zone climate control, Burmester surround sound system, MBUX multimedia with voice assistance and head-up display to name a few. The top-shelf Mercedes-Maybach GLS600 adds exclusive 23-inch alloys and grille, diamond-quilted Nappa leather, premium rear seat opulence including power sun-blinds and digital screens in the front seat headrests, plus much more.
The rear luggage space in seven-seater GLS models offers 355 litres of load volume with the third-row seating upright, which expands to 1350 litres with the third row folded and ultimately 2400 litres (or 2.4 cubic metres) with the second and third rows folded.
The entry-level GLS450d is powered by a 3.0-litre inline six-cylinder turbocharged diesel engine with 48V mild hybrid technology that produces 270kW and 750Nm. The AMG GLS63 and Mercedes-Maybach GLS600 share a 4.0-litre twin-turbocharged petrol V8 also with mild hybrid assistance, with the AMG having the highest outputs of 450kW and 850Nm.
The entry-level GLS450d can accelerate from 0-100km/h in 6.1 seconds while the performance-focused AMG GLS63 lowers that time to just 4.2 seconds. The GLS range's top speed is electronically capped at 250km/h.
The entry-level GLS450d has official combined consumption of 7.8L/100km with a theoretical driving range of more than 1100km from its 90-litre diesel tank. This consumption climbs to 13.4 for the AMG GLS63 and a high of 13.7 for the Mercedes-Maybach GLS600, with the latter resulting in the shortest theoretical driving range of around 650km from its 90-litre tank. Both of the V8 models specify RON 98 premium unleaded petrol.