Answer: If the debts are in just your name, and any assets such as the proeprty are in just your wife's name, then technically no one can take your wife's stuff or assets; the issue may be a think called beneficial interest.
If you have contributed in anyway to the property or car, such as paid the mortgage, insurance, MOT, tax disc, upkeep, maintenance, etc, then it may be argued you have an interest in that asset. Also, if any money from you or the sale of a previously jointly owned asset was used in any of the new assets, you could be shown to have an interest as well.
While it can be difficult to prove beneficial interest, it is something you need to be aware of. Now if your wife can prove she has paid everything and you have never contributed, then you can be fine.
I hope this has answered your question.
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