You can lock the doors with the key inside.You can't lock the doors with the key inside it beeps the horn at you.
It does auto lock once you get over a certain speed. If you stop the boot won't open unless you've got out the drivers door, turned the car off, or pressed the unlock button on the drivers door.
I assume you mean, someone else can't open the boot while you're inside.I take it, if the key is in the car and the doors are locked you still cant open the boot. I'll try this later at work (where the spare key is)
I assume you mean, someone else can't open the boot while you're inside.
If so, yes, once the car locks as you drive off it locks all the doors and the boot so nobody can open the boot while you're stopped in traffic etc.