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2015 / 2016 Mercedes GLA 250 Review

Every luxury manufacturer is in a relentless pursuit downmarket. There are a few reasons for this but the most important are increasing volume, amortizing common development costs and snagging life-long…
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All About ZF’s 9HP Transmission

In general terms an engine is most efficient in a somewhat narrow band of RPMs. That exact band varies from engine to engine based on what the designers intended at…
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