Wow! those guys are all nutters.
I expect the cheapest one will win: -
North American Eagle "using the
next generation of technology to break the world LSR"
That'll be a 60 year old F104 with the flying sufaces hacksawed off then
At least that fuselage is proven at 1000mph+, unlike Bloodhound or Aussie Knock-Off 5R (did you see how all his cars look the same as previous record holders, but with a bigger donk shoved in?)
Good luck to all 3 teams -you're all mad.