I would not bother staying in Sydney if I were you. I'd drop the car off and go home. Then call them routinely and get updates.
Get a friend to drive with you and drive back
Oh this isn't a power thread.
Well if you travel at 88 mph down the 1/4 then the flux capacitor will be charged up so technically speaking you will be able to do a 1/4 mile in -ve years ie fastest car in universe.