The GL-Class is the biggest, bluntest, and heaviest sport-utility vehicle Mercedes-Benz offers in the US. For 2009, it can be ordered with a 50-state clean diesel engine that improves fuel mileage and actually costs less than the gas-guzzling V8 alternative. The MSRP is $58,200, with an $1,800 tax credit to support “advanced lean-burn vehicles.” Of […]

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