Buick has announced plans to produce a five door crossover in 2010 and a hybrid, plug-in version during 2011... The vehicle will be a smaller version of the Enclave using, in the gas prototypes, a 2.4 liter Ecotec 4 cylinder and 3.0 liter V6...The hybrid option will work with a 3.6 liter V6 flex-fuel engine, which may get up to 15 miles of pure electric power in heavy driving circumstances...

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