Well, I have to disagree with you on a few of your points. Considering I have a commercial license, have driven nearly 2 million accident free miles, have extensive mechanical knowledge of vehicles, have attended high speed driving classes, and know the Montana roads like the back of my hand, yes, I absolutely do feel I am above the level of the average driver on the road today.
Old cars and bad tires are absolutely a cause of accidents. I've witnessed some of them myself. I was driving truck across Nevada one sunny day when it was 110 degrees outside, a lady driving an older Buick went sailing around us doing at least 90mph. I had barely said to my co-driver, "it's way to hot to be driving that fast on those tires" when bam! front tire blew and she went spinning out of control across the highway, through a fence and out into the desert. I could tell many more stories of personally witnessing numerous accidents...
I do agree distracted driving is also a leading cause of accidents these days, which is another reason I feel I am safer than the average driver when I'm doing triple digit speeds. As Eclectic mentioned, I'm hyper aware of what is going on, not busy seeing who updated their Facebook status and reading my last text message.
Anyway... This thread isn't about saying who's a good driver and who isn't and why accidents happen. It's about whether or not the Tesla is a safe and capable vehicle at it's maximum velocity, and in my opinion, yes, it is.
Cheers!