Ernie, the news story didn't say the differential was 100, they said the police claimed the Cobra was doing in excess of 100 mph...VegasMike brings some interesting information about weather conditions and no alcohol in the Cobra.
The well-known statistic about alcohol being involved in over 50% of accidents can mean something like this: a sober guy was driving drunk friend home, minding their bidness sitting at a light, and got rear-ended by a sober soccer mom on the cell phone, but "alcohol was involved"...or someone that had a beer but was not legally drunk, got hit by a sober person while walking across the street, once again alcohol involved. I'm certainly not in favor of drunk driving, but MADD has made a whole 'nother class of criminals, without addressing the serious issue (the guys that blow 0.15+)...instead, they went the other way and went after the guys that blow 0.08. Just some food for thought.
Wait a second and let me get my popcorn.