A lot of people did it in their 1st year, but more did it in their 2nd year as they found it more manageable with only doing 3 subjects.
Personally, I couldn't fit the balance in with doing English Literature, Philosophy and Ethics, English Language, History and General Studies (essay for GE each week). On top of being a tutor too. I just found it impossible to find time. So I gave it up after about 25 lessons because they were too inconsistent so the pace of my progression was just going far too slow.
I would only recommend driving if you plan on getting a car, otherwise it could be argued to be a waste of money. I know half the people during the course of A-levels who did their tests, got a car/shared their parents or older siblings, straight after they passed. However, I couldn't afford a car, not until at least when I've finished uni and actually start earning. So I think I shall start when I'm at uni or at some point.
But for me, driving wasn't for me as I found it VERY stressful and I was really tired after 1 hour sessions. Don't be sucked into the pressure of driving is cool, etc etc. It's fun to bond over it with friends and stuff. But how useful will it be when you pass, and then don't end up getting a car after 3 years?
That's my personal experience.
PS: I had to work for my money, so all the money I did get from my job went on driving, which I thought was a waste. I'm not stuck up and when I click my fingers, my parents pay for it. I grew up the old fashioned way. I despise parents who give their child everything, without making them work for it. "Can I get a car if I get BBBB at AS?" "yeah sure thing!" "can you pay for the WHOLE of my 3 years at uni because I'm an only child?" "yeah sure thing!". What absolute *******s. In life, things don't come free, the sooner some teenagers realise this, the better. RANT over.