I grew up in Carson county. 166mph isn't ever really safe, but the Texas Panhandle is flat (I mean seriously flat) and I40 is a pretty well kept highway. If you

I grew up in Carson county. 166mph isn't ever really safe, but the Texas Panhandle is flat (I mean seriously flat) and I40 is a pretty well kept highway. If your going to go 166 on public roads, that might be one of the best places to do it.. I will add 10:22am there would've been quite a bit of traffic (relatively speaking) and highway patrol loves hanging out on I40 (as it's a major drug corridor).