....
Tell her to in future sleep with her handbag, with keys inside, beside her in future
.....
Which is exactly the opposite of what plod told a neighbour who had their house broken into in the small hours looking for the keys for his almost brand new S Class Merc. He had actually taken the upstairs with him, but would you really want some scum screaming at you stood next to your bed demanding car keys from you while you stare bleary eyed at him?
no, good point
However, the usual method of theft of new/newly new top of the range vehicles is to now use scanners to unlock the vehicle and allow the engine to be started, so the thieves do not have the bother, and risk, of entering the property. The 'old fashioned' thrieves are now usually the ones who break into the home, but to steal far more than a less than top of the range vehicle, going for everything their greedy little hands can be laid on of any value.
Keeping the car keys/handbag (which will often contain everything the thief wants) in sight of the front door is a great temptation to an opportunist thief, and if it can be reached through the letterbox - wey hay, it is Christmas!!
In short, if you own valuable items, like a E Class Merc parked on the drive to confirm "you are loaded" you are always going to be a target. If the thief wants a bit of what you have got, and you do not want to risk your families lives, then just make it very easy for them to take the car by leaving the keys on show - if they use scanners then they will be gone with the car within 30 seconds anyway!
That is my take on it anyway