Is traction better at El Mirage (generally, historically) or at Bonneville (when the
salt is considered "good")? Even if traction on dirt is adequate, El Mirage is a
pretty small dry lake. I think racers there are allowed just 1.3 miles to accelerate.
We may want to think about venues such as the Alvord Desert for future
high-speed runs, as it is about 11 miles long. To my knowledge, nobody
is mining it for minerals. The altitude is (roughly) 4,000 ft, similar to Bonneville.
Alvord is pretty remote, though. I think it's "managed" (cough, cough) by the BLM.
Then there's the Black Rock Desert, of course. With enough effort (otherwise
known as cubic dollars), a course could be prepared there for some very high
speeds, as we already know from Thrust SSC's achievement of 1997.