2011 Glk350 Used Cpo Certified 3.5l V6 24v Automatic Rwd Suv Premium on 2040-cars

Auto blog

Mercedes-AMG developing halo car with new 12-cylinder engine

The SLS AMG was once the jewel of the Mercedes-Benz performance lineup, a commanding supercar the presence of which could be felt a football field away. The AMG GT has taken that crown with its seductive 4.0-liter V8 biturbo engine – a veritable bulldog cloaked in an alluring silhouette. But Mercedes was always clear: this was a Porsche 911-fighter. It was even called a "baby SLS." Now it appears in the world of three-starred performance halo-cars, Mercedes may be playing its own Game of Thrones. To be clear, the GT will remain top dog for some time to come, and that lineup "will expand," we're told. A Black Series is still at least a year or more away, and we could see another model in the AMG GT family beyond that. But a recent conversation with a Mercedes-AMG product planner in Austria revealed that a new halo car is in the works, one that will slot above the GT. It will likely draw power from a new 12-cylinder that's now in development, one that will be mated to an electric motor and battery pack. This ultra-hybrid setup could boast the greatest performance of any Mercedes yet. Crucially, it will have better fuel economy, good enough to justify its existence in an increasingly stringent regulatory environment. As for the new 4.0-liter V-8 in the AMG GT, you can expect to see a lot more of it, starting with the E63 AMG, sometime after the next Mercedes-Benz E-Class launches next year. Related Video:

2015 Mercedes-AMG C63 S First Drive [w/video]

As I mashed the throttle heading into the back straight of a nearly three-mile-long race track, I couldn't help but center my mind on two ostensibly disparate subjects: physics and pistons. If the heart of an automobile is its engine, the heart of the engine are its rotating bits – the crankshaft, pistons and the block they're nested inside. It seems fitting, then, that the internals of the twin-turbocharged 4.0-liter V8 typify the brand-new 2015 Mercedes-AMG C63 sedan I found myself piloting in Portugal. Whereas the last C-Class AMG availed itself of a brute of an engine, employing 6.2 liters of displacement to make its 451 horsepower the old fashioned way, the latest AMG's V8 engine has been downsized radically. I had the opportunity earlier in the day to actually hold the pistons of the new 4.0 Biturbo V8 in my hands, alongside those of the outgoing 6.2. The difference in size is staggering, the new lumps looking downright picayune in comparison to the latter. These eight seemingly diminutive pistons turn combustion into crankshaft-spinning power inside a block that is smaller, lighter and more compact than I'd have thought possible, considering the prodigious output the engine spits out. I had gone into this assignment expecting to pen an ode to lost love; a sonnet of sorrow bemoaning the switch from massive cylinders to wheezing power adders. But I was wrong. In fact, the report that follows may indeed read a little like a love song, except it will heap praise not on what used to be, but instead on what is now possible. The new heart of AMG more than makes up for its reduction in size by relying on turbochargers and smart engineering to turn just 4.0 liters into 469 horsepower and 479 pound-feet of torque starting at just 1,750 rpm, or as much as 503 ponies and 516 lb-ft in uprated S guise. Foot to the floor, eyes focused on the turn ahead, a hard right-hander named Primeira that requires hard braking and quick reflexes, I had a fleeting moment of clarity: These are some hard-working pistons. A few days on the street and track in and around Faro, Portugal, has convinced me that the new Mercedes-AMG C63 is a better car in any meaningful measurement than it was before. And I'll go one step further. Not only is this the best C-Class AMG ever, it's also my new favorite in the hotly contested segment that includes such knee-benders as the BMW M3 and M4.

Audi RS6 Avant and Mercedes-AMG E63 S drag race for Top Gear

Sometimes the kids are late for school, and you need a wagon to get them there in a hurry. In its latest drag race, Top Gear finds out which is the quicker high-performance family hauler: the Audi RS6 Avant or the Mercedes-AMG E63 S. The specs suggest this race should be quite close at the finish line. The RS6 has a 4.0-liter twin-turbo V8 with 552 horsepower, but the E63 S is a little more powerful with 577 hp from a 5.5-liter twin-turbo V8. However, the Audi has a traction advantage from the all-wheel drive system, whereas the Mercedes only spins its rear wheels. Pick your favorite, and then watch the video to see if the similar numbers translate to a photo finish in the real world. Related Video: