1978 Mercedes-benz Sl-class on 2040-cars

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2014 Mercedes-Benz SLS AMG Black Series [w/video]

The biggest misconception about the Mercedes-Benz SLS AMG Black Series is that it's simply a higher-performing version of the SLS GT - a closer look, or better yet, a few hot laps on a high-speed racing circuit, reveals that is anything but the case.
Launched in the States in mid-2011, the standard SLS GT is a 583-horsepower, all-aluminum, gull-wing coupe with performance that positions it near the top of the exotic segment. While the AMG team at Mercedes-Benz could have left it alone, their experience with the SLS AMG GT3 race car said there was room for improvement, so they devised the SLS Black Series. The transformation from SLS GT to SLS Black Series is extensive, with no fewer than 17 different significant enhancements.
The engine mapping, crankshaft, connecting rods, valve-train, intake, exhaust and cooling are all modified and the engine's redline bumps up from 7,200 to 8,000 rpm, which pushes output of the hand-built 6.3-liter V8 to 622 horsepower. The power steering receives a new ratio, a coil-over AMG Adaptive Performance suspension is installed along with underbody braces, the track is widened, two-piece carbon-ceramic brakes replace iron rotors at each corner and a lightweight titanium exhaust is fitted beneath. The AMG Speedshift seven-speed dual-clutch gearbox is modified and an electronically controlled AMG rear differential lock ensures the power goes to the pavement. Last on the mechanical upgrades are new lightweight forged wheels (10x19 inches front and 12x20 inches rear) wrapped in special R-compound Michelin Pilot Sport Cup tires.

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.

Aston Martin tipped for F1 return with Red Bull, Mercedes

Aston Martin could be plotting a return to Formula One for the first time in over half a century. And not as a backmarker, either. That is, at least, if the latest rumors materialize. While most automakers that participate in F1 do so as either a team owner (like Ferrari and Mercedes) or as an engine supplier (think Renault or Honda), the rumored Aston Martin deal would take a different approach. According to Autosport, the proposal would have the Red Bull Racing team run Aston Martin branding – but not its engines. Those would be provided by Mercedes, just like the engines in the British marque's upcoming slate of road cars. In that regard, the deal would not be unlike the one which Red Bull currently has with the Renault-Nissan Alliance, which sees the team running Renault engines and Infiniti branding. Andy Palmer was a pivotal figure in brokering that unusual arrangement when he was working for Carlos Ghosn, and is now tipped to be brokering a similar deal in his new capacity as Aston Martin's CEO. Though Aston has found glory in sports car racing (including Le Mans and its various associated series), it was never much of a contender in grand prix racing. It competed in a handful of races in 1959 and 1960, but never achieved results worth bragging about. Aston was rumored to be plotting a return when David Richards sat as chairman of the company, having run Aston's racing program as well as Honda's F1 team previously. Those rumors, however, never materialized. Whether this time 'round gains any traction remains to be seen - Aston Martin declined to either confirm or deny the reports when reached for comment by Autoblog. Red Bull has been growing increasingly dissatisfied (and increasingly vocal about its dissatisfaction) with Renault engines over the past couple of seasons. Though the two parties won four back-to-back world titles together, things took a noticeable step backward after the new turbo engine regulations took hold for the 2014 season. Nissan/Infiniti and Red Bull are contracted to continue collaborating until the end of next season. After that is when the new Aston deal could take hold, and Mercedes is reportedly keen on the idea so that it could add another customer to its F1 engine supply business and offset the costs of development. That could effectively prove the end of Renault in F1 (at least for the time being). Aside from Red Bull, the French automaker currently supplies only that outfit's sister team Toro Rosso.