Anyone with a car has seen the upward drift of gas prices, which have jumped an average of 17 cents in the past two weeks. And the auto industry is watching that trend closely, rolling out a variety of more economic, fuel-efficient vehicles.They're on display at the New York International Auto Show at the Jacob Javitz Center. Hybrids are getting a lot of attention this year, offering electric power assist for lower gas usage. And the other flavor of the moment is the crossover utility vehicle, or CUV. This is the fastest-growing sector in the United...