A shootout between two upscale Japanese sports sedans - the Infiniti Q50 and Lexus IS250 - should be good times. But as we explain, it didn't turn out that way. We also take a first look at the Mercedes-Benz CLA250 and the Honda Accord Hybrid. The stunning and sonorous Maserati Ghibli visits the track as does a new Jeep Cherokee. Finally, we help a viewer find a SUV to replace his aging BMW M3.