The Pontiac G6 is a roomy car that offers good road manners and excellent overall function, especially at initial prices. It does its job well and sales numbers will surely increase now that the line has been fleshed out with coupes, convertibles, high-performance and a low-price leader.NewCarTestDrive.com correspondent Jim McCraw filed the report on the sedan from the Detroit area; with Mitch McCullough reporting on the coupe from Los Angeles.