The old lady is still going strong!

2005 4.8iS:
Quarter-mile: 15.3 seconds.
Through the slalom: 62.3 mph.
60-0 mph: 116 ft.

2010 X5M:
Quarter-mile: 12.8 seconds.
Through the slalom: 63.5 mph.
60-0 mph: 116 ft.

2005 4.8iS:
2005 BMW X5 4.8is Follow-Up Test

2010 X5M:
2010 BMW X5 M Full Test