Sounds like sooooo much fun.....at any speed!
But to drive cross-country east to west without following a good bit of Route 66 seems a waste.....but, on second thought, if you're driving a non-American car, then it doesn't make any difference
Will you be tracking your UPS package to see each morning whether it's ahead of you.....or not?
I'm a relatively new fan of Top Gear (on BBC America on cable), so the only mini-challenges I recall involve setting caravan-campers on fire.....
Two fine causes to support....enjoy!!!