Will buying a car in cash affect my mortgage application?

I am fortunate to have been gifted a large sum from my late Aunt to be used as a deposit towards my first property purchase.

I have never had an overdraft, never been in debt, do not have any credit cards, however I have saved £20,000 cash to purchase a new car, so will not be taking out any loan. I do however have a student loan which I have been paying off.

If they see this substantial payment come out of my account, will this affect my decision even though funds will be remaining?

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