Porsche 911 Sport Classic, Mercedes-AMG C43 Debuts

New performance cars debuted this week, including the 543-horsepower Porsche 911 Sport Classic and the Mercedes-AMG C 43. A future electrified Corvette was finally confirmed by GM President Mark Reuss, and Nissan released pricing info for the new Z in Japan. And with summer around the corner, now is the perfect time for an open-roof cheap car challenge featuring convertibles and t-tops.