can anyone help, On my way home, doing about 50 MPH, my celica gtr just suddenly stopped, it was like someone had pull the plug out, no power at all, no light, ignition, hazard light, all dead. All the fuses are ok, battery has full power, power is going to the starter, but everything is dead, the relays look ok to. Help!!! Many thanks Brad.

Eeek, there's a couple of shunts in the battery fuse box and a main fuse. Sounds like an earth has self destructed.