SAARBRUCKEN, Germany – As 7-speed transmissions begin creeping into the marketplace, at least one supplier contends the technology doesn’t necessarily offer much advantage over existing 6-speeds. Mercedes-Benz offers 7-speed technology on seven V-8 equipped models in ’05 and BMW AG will offer a 7-speed sequential manual on its M5 sports sedan in 2005. Mercedes’ 7-speed transmission Current 7-speeds, while smoother performing and about 4% more fuel-efficient than the 5-speeds they ...

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