The 2007 BMW 5-Series serves up a range of possibilities, all backed by performance ability and luxury features. All 5-Series come with comprehensive stability technology that includes dynamic stability control, dynamic traction control, dynamic brake control. The entry level 525i, and 530i sedans come standard as rear-wheel drive, with all-wheel-drive systems running at a $2,200 premium. The 550i and M5 sedans are rear-wheel drive only, and the 530 wagon is available in all-wheel drive only. The 530 sedan and wagon feature a 3.0L inline-six engine that produces 255 horsepower. The 525's inline-six produces 215 horsepower, while the 550's V8 produces 360 horsepower. Standard features on the 5-Series include a power sunroof with an anti-trap feature, auto headlights, fog lights, power mirrors with auto tilt-down, and tri-zone climate control, and BMW's iDrive system. In addition to the powertrain upgrade, the 535 gets xenon headlights with auto-leveling and 10-way power front seats. The 550 trim adds Dakota leather seats and front and rear park distance control. Options for the 525i include genuine Dakota leather seats for $1,450 as well as a Premium Package that includes power driver seat lumbar support, interior illumination, and a universal garage door opener. The Sport Package upgrades the tires to 245 series run-flats, 20-way power front seats, active roll stabilization, and sport suspension. Active cruise control is available as well as a navigation system, and an audiophile Logic7 sound system with 13 speakers and twin subwoofers. The 530i offers two transmission choices beyond the standard six-speed manual. A six-speed automatic is available, but so is a six-speed sequential manual gearbox that gives the user automatic and manual options and a sport dynamic driving control feature. The Premium and Sport Packages are also available. The Sport package upgrades the wheels and tires to 18-inch run-flats. The 550i also offers the same transmission choices as the 530i. The Sport Package includes the 18-inch run-flat tires as well as the 20-way power seats for $2,800. A Premium Package is not available on the 550, as the equipment is already standard on with the trim. The performance-oriented M5 is a whole other story. It comes with a 5.0L V10 engine that puts out a neck-snapping 500 horsepower. The standard transmission is a 7-speed SMG sequential transmission with 11 shift programs and launch control. A conventional 6-speed manual transmission is also available. The M5 stands apart from the rest of the 5-Series, and is one of the best performance sedans in the world. Every part of the car seems designed with high speed handling in mind. It's equipped with a high-output aluminum 5.0L V10 that uses stepless variable valve timing and direct ignition to generate a neck-snapping 500 horsepower. The engine is mated to a seven-speed SMG transmission with 11 shift programs and launch control. The wheels are driven with a variable differential lock and a special Dynamic Stability Control program unique to the M5. Further performance enhancements include M-specific suspension, cross drilled disc brakes, body panels with air intakes and spoiler, and even M-specific Merino leather heated power front seats.