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According to the UK's Autocar, BMW will introduce a stop-start engine management system to help put it in line with new, voluntary C02 emissions standards (an agreement brokered by the European Automobile Manufacturers Association) coming on line in 2008. The system is, in essence, an efficient kill switch / ignition combo that seamlessly cuts the engine and restarts it, rather than letting it idle at, say, a stop light or in stop-and-go traffic. The technology is part of the company's Efficient Dynamics system it introduced at last year's Frankfurt show, a range of hardware and software technologies surrounding its hybrid efforts like an awkward hug from Bill Gates. (Remember that thing about supercapacitors?). The system, called Auto Start/Stop will find its way into 1-Series, 3-Series and 5-Series models, likely in Europe only.

BMW Bringing X3 Hybrid Concept to Frankfurt, Uses New System of Super Capacitors [internal]