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The Mercedes GLS has an impressively punchy and smooth diesel engine, and it certainly looks flash inside, but the build quality, ride comfort and handling all disappoint for a luxury SUV of this price.
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The engineSee full engine specs
Right now, this 3.0-litre six-cylinder diesel that produces 325bhp is the only engine on offer in the GLS. It’s impressively smooth and strong, and mostly works well with the standard nine-speed automatic gearbox. However, its average fuel economy is surpassed by most rivals, including the BMW X7 xDrive40d, which is also quicker.
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