Buying car through limited company

I am looking to buy a car through my limited company and I’m w weindering what’s the best way to do it.

I am employed full time wilth a salary of €90000 and have a side business that has around €30000 that can be taken as salary. 

I have not taken any salary out of the company so far and i am not on the payroll.

I am looking at a second hand car for around €25000 that would have an omv of around €45000.

if I take €30000 as salary I’ll be taxed at over 50% but if I buy it through the company I’ve calculated the BIK would be €500+ a month which wouldn’t be much better.

Would anyone be able to advise me on the best way to pay for a car in my circumstances?

i have ran it by my accountant who said my BIK would be €172 per month which seems very low to me. I’m waiting for him to explain the figures but it’s obviously a very busy time of the year for him so hoping to get some advice here in the meantime.