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These are the 'Greenest' and 'Meanest' cars in 2015

As has become tradition, the American Council for an Energy-Efficient Economy (ACEEE) has come up with a ranking of what it refers to as the "greenest" cars of 2015, and, by way of contrast, a list of the so-called "meanest" cars, so those who value eco-friendliness over all else can choose which vehicles they should or should not consider buying. As you may expect, electric cars make up the majority of the greenest cars on the list, but, perhaps surprisingly to many, the Tesla Model S didn't make the cut. It's worth noting, too, that where the electricity an owner uses to charge their electric vehicle has a big impact on its overall environmental impact. "A car that is charged using electricity generated from natural gas or renewables is going to have significantly less impact on the environment than one charged on a coal-heavy grid," says ACEEE lead vehicle analyst Shruti Vaidyanathan. The ACEEE's list for 2015 looks very different than it did in 2014. It's an interesting collection, though – and we're sure this goes without saying, really – we'd recommend doing a bit more research into each vehicle and how it might fit into your daily life before making any purchase decisions. Click here to see the ACEEE's list of the Greenest and Meanest vehicles sold in the United States in 2015. Green Bugatti Chevrolet Fiat GM GMC Mercedes-Benz Nissan RAM smart Toyota greenest greenest cars

Fastest cars in the world by top speed, 0-60 and quarter mile

A claim for the title of “Fastest Car in the World” might seem easy to settle. ItÂ’s actually anything but: Are we talking production cars, race cars or customized monsters? And what does “fastest” even mean? For years, car publications have tended to define “fastest” in terms of an unbeatable top speed. ThatÂ’s distinct from the “quickest” car in a Usain Bolt-style dash from the starting blocks, as with the familiar 0-60 mph metric. Professionals often focus on track lap times or elapsed time-to-distance, as with a drag racer thatÂ’s first to trip the beam of light at the end of a quarter-mile; or the 1,000-foot trip of nitromethane-powered NHRA Top Fuel and Funny Car dragsters. Something tells us, however, that you're not seeking out an answer of "Brittany Force rewriting the NHRA record books with a 3.659-second pass at a boggling 338.17 mph." For most barroom speed arguments, the focus is firmly on cars you can buy in showrooms, even if many are beyond the financial means of all but the wealthiest buyers and collectors. Here are some of the enduring sources of speed claims, counter-claims, tall tales and taunting dismissals that are the lifeblood of car enthusiasts – now with EVs adding an unexpected twist to these passionate pursuits.   Fastest from the blocks: 0-60 mph Thirty years ago, any car that could clock 60 mph in five seconds or less was considered extremely quick. Today, high-performance, gasoline-powered sedans and SUVs are routinely breaking below 4 seconds. As of today, the 2023 Dodge Challenger SRT Demon 170 crushes all with a 0-60 mph time of just 1.66 seconds. That's simply absurd, but keep in mind the Demon was engineered with the single-minded purpose of going fast in a straight line. It's also important to realize that direct comparisons are difficult, because not all of these times were accomplished with similar conditions (prepped surfaces, adjustments for elevation and so on). The moral here is to take these times with a tiny grain of salt. After the Dodge, the Rimac Nevera comes in with an officially recorded 0-60 mph time of just 1.74 seconds. EVs crowd the quickest list, with the Pininfarina Battista coming in a few hundredths slower (1.79 seconds) than the Nevera and the Lucid Air sapphire (1.89 seconds) right after that. Eventually, you arrive to the Tesla Model S Plaid, which has a claimed 1.99-second 0-60 mph time, though instrumented testing by Car and Driver shows it accomplishes the deed in 2.1 seconds.

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.