[Correlli]

pawn Код:

public OnPlayerEnterCheckpoint(playerid)
{
  SetPlayerCheckpoint(playerid, 648.8143,1687.6963,6.9922,3.0);
  if(IsPlayerInAnyVehicle(playerid))
  {
  SetVehicleHealth(GetPlayerVehicleID(playerid), 1000.0);
  SendClientMessage(playerid, 0x33CCFFAA,"You Have Repaired Your Vehicle, And You Have Payed $100");
  }
  return 1;
}

And max. health for vehicle is 1000.0 and not 100.0, 100.0 would destroy it.