AutoWeek reports the stereo will fill the cabin with concert-hall sound, while the OnStar system will tell you where you are and where you're going * Consumer Guide calls it a satisfying blend of performance, room, comfort and features at a reasonable price, cites acceleration, passenger/cargo room among its positive points * Consumer Guide credits DeVille as being among the world's roomiest sedans * Named a Consumer Guide Recommended Buy for 1999 * Named a Recommended Buy by Consumer Guide Car & Truck Test 1998 *