sentences:  The exterior of these Impalas were identical to regular 1973 production models, but used a 1974-style Oldsmobile instrument panel and brand-new steering wheel design.The chassis of these cars were reinforced, and each Impala was equipped with a high-performance 350 cubic-inch V8 engine, the same one used in the Corvette.Of the original fleet of Chevrolets, virtually all were eventually disposed of except one, which is currently fully restored.