The 2003 Chevrolet vehicle selection consists of several products gaining a facelift. Styling of the Chevrolet Cavalier has been retuned with improvements such as a revised front and rear end with a more prevalent upper grille. The 2003 Chevrolet Impala sedan also features a slightly altered rear appearance. Recognizing the changing shape of vehicles, Chevrolet is imagining the future of performance with styling from the past in one new product. An extraordinary design experiment, the all-new 2003 Chevrolet SSR is a two-door pickup truck with a power-retractable hardtop. Along with the SSR, Chevrolet demonstrates the performance potential possible in a full-sized Silverado pickup truck with the introduction of the 345-horsepower Silverado SS. The TrailBlazer line-up grows in more ways than one with the introduction of the EXT model. On the 2003 Chevrolet Suburban and Tahoe, StabiliTrak electronic stability control is now available. The Chevrolet Corvette's five decades of construction is being marked in 2003 with a 50th anniversary model.