Another round of Mercedes spy photos captures a silver 2010 E-Class wagon prototype with most of its camouflage removed.

As a follow-up to the official photos of the 2010 Mercedes E-Class sedan that leaked a just over a week ago, the E-Class wagon has been spotted in testing with minimal camouflage. The E-Class' new lines evolve nicely onto the cargo-carrying body, which features a rising body line and a long rear overhang to ensure ample room behind the rear seats. A dual exhaust and smoothly integrated roof rails are also visible in these photos. The taillight shape seems to follow that of the redesigned headlights.

As is generally the case, the E-Class wagon is expected to share powertrains with the sedan series, from the fuel-efficient CDI models to a high-powered AMG edition. U.S. buyers can expect a BlueTec-equipped wagon as well. There's been no word yet as to whether the E-Class wagon will debut at Geneva with the sedan and coupe, or if Mercedes will save it for later.

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