first time at the track with the new car still had the paper tags on it. an 848 miles on the ODO

2011, stock M6, SS. no mods.
tire pressure in rear tires was at 26 PSI.
Track: Thunder Valley, Noble Oklahoma .
24 Sept 2010
weather:
altitude :1085 ft
humidty: 83%
temp: 73 degrees F
BP: 30.15 & steady
dewpoint: 65 degrees
Density altitude was: 2396 ft
1/4 mile time: 13.183 @ 108.94

did the conversion, corrected for sea level would be: 12.81@ 112.169mph