I mean a car would be useful for things other than uni.
Like for me my mum doesn't drive and my dad is at work all the time so I want to get a car to be able to take my mum and siblings out, go to the gym (easier than public transport), go far places in London, shopping for my mum etc.
If you think it will benefit you and you are able to bear the costs of a car and you don't think you'll be harming the environment for pointless travels then I don't see why not