On this episode of Head 2 Head, Motor Trend's Jonny Lieberman referees the battle between two hotly anticipated Japanese sports sedans - the 2014 Infiniti Q50S and 2014 Lexus IS350. Lieberman starts out at the track where he puts both cars through the usual battery of Motor Trend instrumented performance tests. After that, it's off to one of California's premiere canyon roads to see how the cars behave in the real, curvy world. Will the new Lexus take the prize? Or is the all-new and quite surprising Infiniti Q50S the winner? Find out on this episode of Head 2 Head.