Whatever you do, don't call the 2007 BMW X5 an SUV. No, it's an SAV, or Sports Activity Vehicle, a leader in its segment that's built right here in the U.S (Spartanburg, South Carolina to be precise). Since making its debut seven years ago, BMW has gone on to sell nearly 600,000 of these home-built SAVs, attracting a range of buyers with six- and eight-cylinder engines, manual and automatic transmissions, a promise of the brand's Ultimate Driving Machine character, and amenities expected from a premium vehicle.