Should I buy a car on a loan

Hi all, I'm hoping to get some advice. I have a family of 5 and we have outgrown our car. I've been looking and have found the perfect vehicle for our needs. It's £17,000.

I have 7,000 just in an easy access savings account. Which is semi used as a rainy day fund and also semi savings to eventually move house one day.

My question is, what is the most sensible choice here.

Should I put 7k down on the car and get a loan for 10k from bank offering 5.9% APR.

Keep the 7k and just get a loan for 17k for the same APR but obviously higher monthly payments.

The monthly payments aren't too much of a difference for me that it's detrimental to make my decision based off the above, however in terms of best value for money what is the best option?

Thanks all