M5 Guru (>2000 posts)
Join Date: Feb 2009
Location: Orange County, California, USA
Thanked 357 Times in 277 Posts
I believe it could be possible. The ring is very technical and has a lot of high speed sections that most drivers usually go too slow through, so if one driver was brave enough to really push the car through all the faster sections he could shave off a lot of time.
I remember watching the video for the Viper ACR's record setting time. The driver bounced the car off the rev limiter many, many times and often just held the car at the rev limiter for a few seconds rather than up-shift and get a little more speed out of it. I'm sure this more than contributed to a few seconds of time. Just shows how much the driver matters. The M5 is SMG, so doing an extra downshift/upshift is not a big a deal as it is on a manual car.
Furthermore, from what I understand, BMW's ring times are with the 155 speed governor IN PLACE. I'm sure more than a few seconds could be made up if they were to try a lap with the governor removed (especially the main straight, where I'm sure the M could start to knock on the door of 190 or 200).
The M5 is my dad's - but I drive it more than he does!
Sold Sept '16. It was an amazing 7 years.