Test mule of Up! chassis is riding on a shortened-wheelbase Polo IV. The Up! is slated to debut sometime in 2011. An electric version, the E-Up! is expected in 2013.

Here are the latest set of spy shots of a Volkswagen Up! test mule - with the Up! chassis fitted to a shortened wheelbase Polo.

The Up! will be Volkswagen's new city/minicar and will come in a slew of variants including a 3-door hatch, a slightly longer 5-door hatch, and an all-electric version.

The electric-variant E-Up! will come with a 60 kW electric motor producing 210 Nm of torque. Othe variants will likely feature VW's small diesel and petrol/gasoline power plant lineup including its 1.2 liter TDI and 1.2 liter TSI engines.

The Up! is slated to debut sometime in 2011. The E-Up! is not expected to make it to market until 2013.

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