I currently have an M5 on order (early January delivery) and was curious as to the true capabilities of the car. I own a 2000 540i sport and am somewhat impressed but, not overwhelmed, by the power. Is the M5 a significant improvement over the 540i? Based on 0-60 times there seems to be a .7 of a second difference between the two cars, however, there seems to be a substantial increase in torque with the M5. Excuse my ignorance but M5's in this part of the country (Utah) are pretty rare and a test-drive is totally out of the question; as a result, I have only seen the cars, never actually had the opportunity to drive one.