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Cigarette Racing unveils the AMG GT S-inspired 50-foot Marauder

The Cigarette Racing stand at the Miami Boat Show this morning hosted the latest in the eight-year collaboration between Mercedes-AMG and Cigarette Racing: the AMG GT S parked next to the fast-boat it inspired, the Cigarette Racing 50 Marauder GT S Concept. The vinyl ester resin and fiberglass go-fast boat is more than a matching Solarbeam yellow paint job with the coupe that inspired it. Like other carmakers who have partnered with companies outside the industry - such as Nissan's recent tie-up with NASA - there's an exchange of technology involved; Cigarette said that working with AMG on composites and bonding helped them drop 1,000 pounds off the Marauder GT S Concept compared to the standard Marauder twin-engine, which comes in at 14,200 pounds. Customers who order standard Marauders can request the weight reduction (for a price), but we were told that unless they plan to spend most of their time above 100 miles per hour, the extra weight contributes to a smoother ride. Mercedes head designer Gordon Wagener penned the exterior paint job and worked with Cigarette to design the cockpit trim, which would have seen him in familiar surroundings: Cigarette Racing owner Skip Braver is a long-time AMG customer, and the boat company based its bespoke department on the AMG Design Studio in Affalterbach. Every one of its boats is handbuilt in its factory in Opa-locka, Florida using some of the same processes seen in automaking, like bar codes to track the progress of hulls and components, computer controlled paint samples with digital files that can be sent around the world for matching, and doing all the stitching in-house to keep tabs on quality control. The engine compartment holds two, nine-liter, four-valve, DOHC, quad-cam, twin-turbocharged Mercury Racing engines with all-aluminum blocks, each one of them good for an electronically-limited 1,550 pound-feet of torque, and either 1,350 horsepower or 1,550 horsepower depending on whether you run regular 91-octane fuel or 116-octane race fuel. So yes, that's 3,100 hp and 3,100 lb-ft at once, if you go all out. Mercury says they're the most powerful powerful emissions-certified gas-powered marine engines you can buy. The engines don't have knock sensors, though, so you have to turn a key to register the kind of fuel you're putting in, and you can switch from one to the other when two 150-gallon tanks are down to 10-percent full.

2015 Mercedes-Benz S63 AMG Coupe

Conventional wisdom would dictate that adding more power and several key performance enhancements to an already very good car, like the 2015 Mercedes-Benz S550 Coupe, will end up equaling an even better car. In the case of the 2015 Mercedes-Benz S63 AMG Coupe, conventional wisdom sort of applies, but perhaps not as much as we'd have initially guessed. We'll get into the nitty gritty details in just a moment, but here's the most immediate takeaway we had in our minds as we walked away from this super coupe: The S63 AMG is excellent, but so is the slightly more mundane S550 Coupe on which it is based, and which is priced some $41,000 less expensive than its more powerful sibling. Chew on those figures while we examine what differentiates the two S-Class Coupes. Drive Notes As expected, the single greatest highlight of the 2015 S63 Coupe is its engine. As a powerplant, it's a gem. As a hand-built engineering exercise, its 577 horsepower and 664 pound-feet of torque are just as impressive in real life as they sound when recited from stat sheets. Not that the old CL63 AMG was lacking in power, but the new S63 AMG Coupe boasts 41 more horses and 74 more lb-ft than the outgoing engine. The run to 60 miles per hour takes a scant 3.9 seconds, according to M-B, aided in no small part by the car's 4Matic all-wheel-drive system and other assorted electronic brains deciding where, exactly, all those ponies should be sent. The rear-biased system is tuned to send two-thirds of the engine's power to the rear wheels in a bid to make the car feel more like what performance-minded drivers expect. Top speed is electronically limited to 186 miles per hour, which is plenty fast enough, even in the days of 200-plus-mph sedans from M-B's former corporate cousin Dodge. We didn't get anywhere near the car's maximum velocity, but our brief trips into triple-digit territory were quiet, comfortable and completely free of drama. The seven-speed automatic gearbox responds quickly to requests of your right foot, but the steering wheel-mounted paddles don't change gears as quickly as we'd like when in Manual mode. Controlled Efficiency (which we'd call Comfort) maximizes efficiency, keeping the transmission in higher gears and shifting earlier than when in Sport mode, and we didn't find much fault with the computer's shifting algorithms in either setting.

VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.