Car purchase decision ( Honda Jazz, BMW 3 Series, Golf 4 , Audi A3)

Hello people are new to the forum and didn’t know exactly where to write in. So I’m looking for a car for me. Should be my first car. I was primarily talking about fuel consumption and afterwards about the optics. What was true in both was the Honda Jazz. My requirement is that he has to have less than 90000 km and at least first registration in 2004. At the price my limit was 4500 to 5500 euros. There will be not very easy but there are already some offers in mobile. but to the actual problem. For 4000 to 5000 euro you get also easily a bmw 3er under 100000km and a Golf 4 or A3 all over BJ 2000. Only with these cars would then be the duty on gas conversion so that I would drive the because otherwise the consumption is simply too high for me. Now I don’t know what the right thing would be. The lower the consumption the more it is driven and you have fun with it. I don’t need the car to drive with it to work or something. What do you think about it? prefer 4 to 5 thousand a jazz or 4000 a 3 and then 1400 a gas conversion.(Has let an acquaintance make with his Benz and is satisfied)