1988 Mercedes Benz 560 Sl Roadster Clariet Exterior, Collector's Car on 2040-cars

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Mercedes-AMG GT3 opts for big displacement without a turbo

There was a time when there were numerous categories in sports car racing: GT1, GT2 , GT3... but these days they've all been amalgamated into the latter. That's left a GT3 class packed with competitors and possibly more contentious than ever before. What you see here is Mercedes' new challenger, in official form after being leaked earlier today by the French website Le Point. Replacing the SLS AMG GT3 that won its class (among other races) the Nurburgring 24 Hours in 2013 is the new Mercedes-AMG GT3. Set to be revealed at the Geneva Motor Show, it's the racing version of the new Mercedes-AMG GT, and aside from looking the business, it has the makings of a highly competitive entry. As you can see, it sits closer to the track surface than the road-going version, and packs more extreme aero – including a front splitter you could serve dinner off of, little winglets to deflect the air away from the front tires, deep side sills, a massive rear wing and (though we can't see it presently) what promises to be a very large rear diffuser. It's also got more ventilation to feed the engine and cool the brakes, and a stripped-out cabin with full roll cage and a steering device that's long since evolved beyond resembling an actual "wheel." To save weight, Mercedes has redone many of the panels out of carbon fiber, but one of the most intriguing elements is what you'd find under that woven hood: instead of adapting the 4.0-liter twin-turbo V8 from the road-going GT, AMG has slotted in the larger atmospheric 6.3-liter V8 from the outgoing racer – coupled to a six-speed sequential gearbox. With its new GT3 entry, Mercedes surely hopes to take a slice of the customer racing market that Porsche in particular has developed into a successful and profitable business over the years. Racing fans, however, will be more interested to see how this puppy fares at Le Mans, the Nurburgring, the Blancpain sprint and endurance series, the United SportsCar Championship, the FIA World Endurance Championship and countless national series around the world. It'll have tough competition on its hands, though, from the likes of the Porsche 911 RSR, Audi R8 LMS, Bentley Continental GT3, Ferrari 458 Italia GT3, McLaren 650S GT3, Lamborghini Huracan GT3 and countless others that battle for glory on a racetrack somewhere on any given Sunday. World premiere in Geneva for spectacular AMG racing car All-out attack : the new Mercedes-AMG GT3 Affalterbach.

Mercedes-AMG teases C63 coupe

Thanks to a recently leaked presentation slide, the cat is already out the bag when it comes to the attractive styling of the Mercedes-AMG C63 Coupe. Still, Mercedes' long series of teases for the upcoming two-door's design continues in a new video. Unlike the last brief teaser, this latest clip shows the coupe completely free of camouflage. Although, the editing is so quick in the 15-second clip, you never really get a strong glimpse at the future model beyond its front bumper. Not that we're complaining about another opportunity to hear the growl from the 4.0-liter, twin-turbo V8. After several videos and galleries of images with various looks at the new model, the wait to learn everything about the C63 Coupe is nearly over – the official reveal comes on August 19. All signs suggest that the two-door will offer the same choice as the sedan between 469 horsepower and 479 pound-feet of torque or 503 hp or 516 lb-ft versions of the twin-turbo V8 with a seven-speed gearbox.

Mercedes G500 4x4 rumbles into view

Mercedes keeps raising the bar with the G-Class: just when you think the legendary Gelandewagen couldn't get any more hardcore, it mashes the throttle and does exactly that, plowing through a bank of snow, sand, hell or high water in the process. What you see here is the latest. It's called the G500 4x42. Aside from the various engine specs, the G-Class has been offered in a number of body-styles. Right around the same time that the two-door convertible was discontinued, Benz rolled out the indomitable G63 AMG 6x6 – a half-million-dollar, six-wheeled monster truck powered by Affalterbach's 5.5-liter twin-turbo V8. Evidently enough people liked the idea but didn't see the point in that extra set of wheels, so Mercedes has toned it down – just a little – but kept the high-riding suspension. The result is the truck we've seen testing a couple of times now in a bright shade of Hulk green, and which is now just about ready for its debut. On the scale of extreme G-Wagens, it slots in between the standard model and the 6x6, keeping the jacked-up suspension and giant wheels, but losing the extra axle. The G500 moniker also indicates that it'll at least be available with the 382-horsepower, naturally aspirated, non-AMG version of the 5.5-liter V8 that we'd know as the G550. Just how much of a premium Benz will charge for the beefed-up version, we don't know, as further details are set to be released next week ahead of a likely debut in Geneva. But hopefully it'll be closer to the $115k it gets for the standard version than the $500+k the 6x6 goes for.