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Brabus 850 6.0 Biturbo Coupe is an extroverted, 217-mph Mercedes S63 AMG

The Mercedes-Benz S-Class is a prime example of handsome, restrained design. It's classy but not shouty, stylish without trying too hard. Of course, Brabus can address that um, problem, for you, without much issue. Meet the Brabus 850 6.0 Biturbo Coupe, an extensively modified version of the S63 AMG Coupe. Larger intakes and lots of carbon fiber typify the front end, while the tail sports a new diffuser and rear spoiler, both of which are finished in carbon fiber. Meanwhile, Brabus is offering a variety of wheel designs, ranging in size from 18 to 22 inches, and with the customer's choice of Continental, Pirelli and Yokohama rubber. The most questionable changes, though, happen in the cabin, where black Mastik leather is finished with copper stitching and piping. Brabus then takes 219 different interior trim pieces and lines them in Shadow Gold paint, just like the Monoblock wheels featured on the vehicle above. Of course, Brabus does much, much more than just offer its own take on the normally conservative Mercedes aesthetics. There's a bit of tweaking to the powertrain. Despite the "6.0" in its name, the donor S63 AMG's 5.5-liter, biturbocharged V8 has been enlarged to just over 5.9 liters (5,912 cc, to be precise), thanks to a larger cylinder bore and a longer stroke, the latter of which comes from a Brabus-spec crankshaft. While Brabus may be exaggerating about the size of its new coupe's engine, the tuning firm is not overstating said powerplant's output. A stout 850 horsepower is teamed with an electronically limited 848 pound-feet of torque. There's more to this modded Mercedes than that, though, as Brabus claims the 5.9-liter is actually capable of turning out a silly 1,069 lb-ft, but that it needed to be limited "in the interest of the longevity of the entire powertrain." All this extra oomph comes from a pair of "special" Brabus turbochargers, as well as new exhaust manifolds and a stainless steel exhaust system. A new intake module also helps breathing, while the engine's ECU has been updated for extra performance. Aside from a new set of paddle shifters, the S63 AMG's seven-speed gearbox was left unaltered, as was the 4Matic all-wheel-drive system. Oh, and if you live in Europe and really want to scare yourself, Brabus will offer the same engine treatment to the rear-drive S63 AMG that we don't get Stateside.

Submit your questions for Autoblog Podcast #325 LIVE!

We're set to record Autoblog Podcast #325 tonight, and you can drop us your questions and comments via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #325
Twin-turbo Cadillac CTS coming

Comparison test: 2019 Acura RDX vs. compact luxury SUV competitors

Truth be told, if we were to compare the all-new 2019 Acura RDX with those compact luxury crossover SUVs it would most likely be cross-shopped against, you'd be looking at a different list. Even Acura admits that Lexus and Infiniti are the most likely bogies, but with the 2019 RDX, Honda's luxury brand is attempting to attract those customers who think as much with their hearts as with their heads. And for the most part, those folks have been buying from German brands: the Audi Q5, BMW X3 and Mercedes-Benz GLC-Class. So, to show how the new RDX compares to them, Acura actually provided examples of each during the recent press drive along with a Volvo XC60. All were determined to have greater emotional appeal than the last RDX, and we would certainly agree. For, as much as the previous-generation RDX made sense on paper, it was really hard to get excited about it. And when you're paying extra for a luxury vehicle, shouldn't you get a little excited? Well, as luck would have it, Consumer Editor Jeremy Korzeniewski and I were on hand in Whistler, British Columbia, for the press launch. We didn't have an abundance of time in each RDX competitor, but in conjunction with our usual comparison chart, our impressions should provide a good first taste of how the new RDX compares. Performance and fuel economy Contributing Editor James Riswick: On paper at least, the RDX is gutsier than its comparably powered European rivals. It also weighs the same or less, which logically should mean it'll be the quickest in a straight line. During my brief drives, though, I'm not sure it really stood taller than the three Germans. It at least matches them for smoothness, which is something that can't be said about the Volvo. Fuel economy is lower than them all when you consider all but the Mercedes come standard with all-wheel drive. It's also worth noting that all the competitors are available with engine upgrades, and unless Acura's forthcoming resurrection of Type S models includes the RDX, it should stay that way. Consumer Editor Jeremy Korzeniewski: Line 'em all up in a drag race, and I have a feeling the Acura would squirt away to victory. A good bit of that, though, would be due to its 10-speed automatic transmission, which offers a huge spread of ratios and fires off extremely quick shifts. In the real world, I'd guess fuel economy will be similar across the board, so I'm willing to call that category a draw.