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Mercedes SLS AMG Black Series gets a price. And it’s a big number starting with ’2′

Mercedes has come up with a price for the SLS AMG Black Series in Germany where it will cost a quite large €249,000. We always knew that the Mercedes SLS AMG Black Series would become a reality, if for no other reason than not having a Black Series of the most potent AMG car in existence would be daft. But it took Mercedes until the Autumn of 2011 to actually confirm they were going to build the SLS Black, and until November 2012 to actually reveal the SLS Black as a hardcore version of the already fairly hardcore SLS.

One Lap of the Web: Remembering Ayrton Senna

-- Hard to believe it's been 20 years since the passing of Formula One legend Ayrton Senna, but one Jalopnik reader remembers the bloody weekend in San Marino vividly. A dream vacation in Europe cumulating in the ill-fated Grand Prix: Alan Dahl saw Senna's wrecked car coming into the pits, but like the rest of the crowd, he wouldn't find out Senna's fate until he left the track. "For years afterwards I felt guilty that, not knowing that the tragedy had happened," he said, "that I had fun at the race." -- The excellent 8W, a site of racing driver stories, recounts the last 96 hours of Senna's life.

GM continues work on fuel-saving engine technology

Sometime in the next decade, you might be able to enjoy some of the benefits of a diesel without driving one. A technology called HCCI improves fuel economy 15 percent and releases fewer emissions by using a combustion process similar to what is used in diesel powerplants. General Motors continues work on the project, which could be applied across a range of engine sizes and used with other advanced fuel-saving technologies to help the company comply with the proposed new mileage and emissions targets announced Tuesday by President Barack Obama.