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The Opel Astra 1.3 CDTI ecoFLEX five-door hatchback is already a fuel miser, but with the addition of an optional start-stop system, the Astra now sips even less diesel. Opel claims that, when equipped with start-stop, the ecoFLEX's CO2 emissions drop from 109 grams per kilometer down to 104 g/km and fuel economy jumps from 47.6 miles per gallon up to 50 mpg.

Since introducing its start/stop technology back in 2007, Bosch has sold 1.5 million of the fuel-saving systems to automakers worldwide. Most of Bosch's start/stop systems have resided in vehicles equipped with manual transmissions. Recently, Bosch began working with numerous automakers – including Fiat, Porsche, Audi and Volkswagen – to develop a start/stop system that could be used reliably on vehicles with conventional automatic transmissions, dual-clutch gearboxes and automated m

2010 Honda Insight – Click above for high-res image gallery

BMW ActiveHybrid X6 - Click above for high-res image gallery

click above for a high res gallery of Honda's IMA hybrid system

Click the S400 hybrid prototype for a high-res gallery

While the issue of the nine-thousand recalled batteries from Cobasys remains a bit murky, General Motors may be inclined to just purchase the troubled battery-maker altogether. While we're not entirely sure that another money-losing operation is exactly what GM needs right about now, we can be sure that GM needs those nickel metal hydride batteries for its current range of mild hybrids. Right now, Cobasys is co-owned by Chevron and Energy Conversion Devices, though the two companies have been bi