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The Mazda 323 4WD GT-R is powered by an evolution version of the turbocharged and intercooled, type BPD, twin-overhead-camshaft, 16 valve, 1,839-cc, inline 4-cylinder engine. This power plant has been specifically developed for the GT-R and will serve as the basis for the unit for the forthcoming Group-A engine. The GT-R's type BPD engine has been developed by Mazda's Motor Sports Engineering Group.