Serdi K-line Sunnen Valve Spring Compressor on 2040-parts.com

Chinese Grand Prix (2013) RESULT

Qualifying for the 2013 Chinese Grand Prix produced a fascinating grid, with three former world champions at the front on soft tyres, two more world champions lurking down the grid on mediums – hoping a different strategy would see them rise to the top – and Red Bull’s Mark Webber starting from the pit lane after running out of fuel in qualifying. And the three world champions who started at the front – Hamilton in the Mercedes, Raikkonen in the Lotus and Alonso in the Ferrari – did indeed make it to the podium, but not in the order they started. Alonso had a cracking start, overtaking Raikkonen for second place at the start and taking Hamilton for the lead by lap five, but stopped two laps later to change his softs for mediums and coming out behind Vettel and Button, who had started on mediums, and Hulkenberg.

Car-sharing programs hit the big time

Rental-car company Getaround introduced its business plan for “peer-to-peer car sharing” on May 24 at the Tech Crunch Disrupter conference in New York City. Unlike other car-renting and car-sharing companies such as ZipCar, Getaround works by connecting potential car renters with willing car owners via an iPhone app. All Getaround vehicles are privately owned.

Electric cars can become electricity banks

Ever try to store electricity? It won't stay in a bottle, and you can't keep it in your sock drawer. So when you have a lot of it--say, when it's windy and your wind turbines are really spinning, or when it's sunny and your gallium arsenide photovoltaics are lighting up, or at night when the utility's generators can run unhindered--you have to store it somewhere.