I've personally run my TI the same distance as the silverstate and the little computer on the dash showed me a 100 average speed (remote area with spotters in front of me). Its not even that hard to do.
The thing about the silverstate is that as long as you have the mileage accurate there are only a few spots you can't drive at 95.... And remember, they won't give you a time if you break out over the entered speed, and they will kick you out.
I'd install a rollbar, add 6 point belts, and remove the airbags. Khumo Ecsta's in the DOT race compound would be a really good tire, they are tough and will last the event.
I know the guy who co-drove (Gary Bockman) the record holding car a couple years back. @ 207.7801 mph The guy who was the driver died in about 2002 from health issues.
Gary told me at one time, he would probably never do it again. There are some long sections with Rock walls on one side and wahoo drops off the other. Even in what was essentially a Nascar level prepped car they new if they went off it was not going to be pretty. He said the real shocker is how fast it all goes and that he never realized what the intensity level would be like when they were planning it.Gary drive some wicked fast machinery in SCCA road racing and I'd say he could hold his own just about anywhere.
He drives stuff that pulls past 140 on any race weekend.
It sounded like one hell of a rush...
Dave