NEW YORK ( TheStreet) -- The focus at the 2012 New York Auto Show may be on the luxury market, with Ford ( F) showing the first step in its effort to remake Lincoln, but GM ( GM) is using the event to fill gaps in its line-up. After all, GM unveiled the new Cadillac ATS amid much fanfare at the Detroit Auto Show. Now, it is bringing in a new Impala, billed by Automotive News as a "bid to shake (its) rental car image," while Buick, which has also moved aggressively to reduce its reliance on rental car sales, has a new luxury crossover, the 2013 Enclave. The 2014 Impala "re-establishes this iconic Chevrolet nameplate as a design leader, with bold styling that will turn heads for years to come," said Mark Reuss, president of GM North America. The car, which will go on sale in early 2013, marks the 10th generation of a vehicle that has been in the market for years and yet, in 2011, was the best-selling full-size sedan in the U.S. market with sales of 171,000 vehicles.