rent a house for a weekend away without using ur own name pay upfront with cash. then rent a hotel in your name close by and check in on time without ur wife kill her during the day in the bathroom of the house cut her up into small pieces split the body into 16 different bags and dispose of them one at a time in the binns of butchers . so thats 16 butchers .
go to the hotel late that night and ask if your wife has come yet and then seem worried but sure she will turn up then explain what has happened to your car and would they please phone the local guarage or aa or road side assistance and im sure they will get you up and running .
the next morning come down and make sure ur not eating pudding