Last night I moved car (Discovery) in the driveway so that another one could park inside. This morning when my mom tried to use the Discovery it would not unlock. She manually stuck the key in and opened the door. When she went to start the car nothing happened- no turn over noise, no lights- nothing electric. Here is the puzzling part, the some of the gauges are up ( fuel gauge is at 1/2) even though the car is off with the key out of the ignition. They were like this before she attempted start the car. I tried turning on the headlights but nothing happened. I left the driver door open and opened the hood, looked around, shut it, and walla, the headlights came on but the interior lights did not come on nor did the door chime. All the doors were shut last night. If you try to lock the doors and one is open it beeps at you, and I did not hear it beep last night. Does anyone have any idea what is going on here. I know that this is a british car, and we all know how great there electrical systems are. I'm just curious, its been really really hot lately, the car is parked in the sun much of the day, and its black.