BMW’s all-wheel-drive system, xDrive 4.8-liter, 350-horsepower V8 engine. fuel injected. 2009 BMW X5 xDrive48i base price, $55,800. As tested, $69,670. Premium package, $2,200; Sport package, $3,700; 20-inch wheel upgrade, $950; Technology package, $2,600; Comfort Access, $1,000; Running boards, $300; Heated front seats, $500; Head-up display, $1,200; Satellite radio, $595; Destination, $825.