Vortec 5.3L V8 SFI and AWD. Red and Ready! You NEED to see this SUV! Imagine yourself behind the wheel of this charming-looking 2004 Buick Rainier. J.D. Power and Associates gave the 2004 Rainier 4.5 out of 5 Power Circles for Overall Dependability. It's a superb SUV that we have placed at a marvelous price.