What you see here is the new Mercedes-AMG GLS63, the top performance version of the facelifted Mercedes-Benz GL. This mid-life refreshment for the largest of posh Mercedes-Benz SUVs will also bring the dreaded new naming scheme, linking the old GL with its saloon counterpart, the S-Class. That means the facelifted model will go by the name of Mercedes-Benz GLS or Mercedes-AMG GLS63, respectively. Our spy photographers have caught one such example testing on the road and we thought it would be a good idea to share their work. The Mercedes-AMG GLS63 is wearing less camouflage than it did the previous times its picture was snapped, so we can get a better idea now about how the car will look like. Well, to put it bluntly, it will look like a facelifted Mercedes-Benz GL63 AMG, that's how. The 2016 Mercedes-AMG GLS63 seems to get pretty much the same front end treatment as the other Mercedes-AMG SUVs, with new headlights, radiator grille and lower bumper, and why shouldn't it?

The car looks mean enough, but it also can't hide the fact it is a heavy behemoth and we can already see in one of the images how much it leans over when turning. But that's not why we or anybody else liked the Mercedes-Benz GL63 AMG: it's because it was exactly what the new name suggests, an SUV version of the wonderful S-Class. Sure, there are also get the G 63 and 65 AMG, but even though they get equally spectacular interiors, it's that freakish off-road ability that prevents them from becoming true luxury machines. The Mercedes-AMG GLS63 can get off-road as well, but its looks tell you it doesn't want to. And neither should you. Alright, back to the pictured car and after the not so impressively taken corner, we get to see its back too. There's not much to tell here, the new GLS63 getting a new bumper and restyled taillights. The car is expected to debut later this year as a 2016 year model. Our photographers also wanted to make sure we appreciate the perfect sunset light, so we're passing this information over to you as well. It has to be said, these are some of the best spyshots we've seen in a while. Make sure you check the full image gallery below.

LED technology is used for taillights and daytime running lights. Inside, the luxury SUVs are fitted with heated power front seats, genuine wood trim and a retractable glass sunroof. New options include a double-sized power Panorama sunroof with a fixed glass panel over the third-row seats and multi-color ambient lighting. The two third-row seats can be stowed electrically at the push of a button, either separately or together, to provide a totally flat cargo floor. For easy access to the 3rd-row seats from both sides, a manual EASY-ENTRY feature is standard. Optionally available is power EASY颅ENTRY folding of the second-row seats. All GL-Class models feature four-wheel independent suspension and height-adjustable AIRMATIC suspension for unprecedented comfort and handling. The GL550 can be easily identified by a unique exterior styling treatment that includes fender flares, more aggressive front and rear aprons, chrome trim and 21-inch AMG wheels. The system can also display maps and directions for the optional hard-drive navigation system, which can be set up for SIRIUS real-time traffic info and Zagat restaurant ratings as well.

All GL-Class models can be equipped with an optional 830-watt 14-speaker digital harman / kardon Logic7 audio system and a rear-seat entertainment system that includes two eight-inch screens, wireless headphones and an integrated DVD player that enables dual-source capability. Available in all 50 states, thanks to an innovative AdBlue exhaust treatment system that helps the diesel meet the most stringent emissions limits, the diesel-powered GL350 BlueTEC delivers impressive performance, low exhaust emissions and great fuel economy. With 240 hp and a whopping 455 lb-ft. GL350 BlueTEC features an innovative 3.0-liter V6 diesel engine with the torque of a V8 and the fuel economy to rival some four-cylinders. Equipped with the latest CDI (Common Rail Direct Injection) technology, this electronically injected and turbocharged diesel engine is changing consumers鈥?dated perceptions about diesels. BlueTEC diesel technology is helping to expand the company鈥檚 already broad product portfolio in the U.S. In addition, the pioneering role of Mercedes-Benz in modern diesel engines is playing a key role in the company鈥檚 future products that could also include hybrids, advanced piston engines and fuel cells. The seven-seat SUV also boasts impressive cruising range - more than 600 miles at highway speeds.

For greater utility, V8-like pulling power makes the GL350 BlueTEC ideal for towing when it鈥檚 equipped with an optional 7,500-lb. Class IV trailer hitch. BlueTEC incorporates an oxidation catalyst and a maintenance-free particulate filter as well as new techniques for reducing nitrogen oxide emissions - the last type of exhaust gas that鈥檚 higher in diesel vehicles than gasoline engines. The BlueTEC diesels feature a NOx storage converter in combination with an SCR catalytic converter and AdBlue injection to lower NOx emissions. The AdBlue system injects just the right amount of an aqueous carbamide solution into the exhaust flow, which releases ammonia (NH3), reducing nitrogen oxides to harmless nitrogen and water in the downstream SCR converter. With a choice of three direct-injection, biturbo V8 engines, the new GL attains better gas mileage while producing more power 鈥?an astounding feat, considering that increasing either power or fuel economy usually decreases the other.