Purchase advice 80s Cabriolet, 1.8s or 2.3s? Pro and contras

Hello, we want to buy an Audi convertible. Personally, I find the 2.3er a super machine and the sound is awesome. I also think that the 1.8er is a good machine and cheaper in maintenance, with almost the same driving performance. I want to drive the weighing machine in everyday operation and probably it will replace my current one. I used to drive an 80er Limo with the 136hp 2.3er and that was just awesome. Just hold the fuel consumption and the high tax with Euro 1 was ned so great. Think that’s no longer contemporary. I am looking for a good fun but at the same time uncomplicated and reliable car. Was there the convertible also as Quattro? Or only the coupe. That might also be a question? What should I pay attention to? I actually wanted to spend up to 4000 euros, but it will probably be thinly sewn with the 1.8er. Hope for your help, Thank you in advance… MfG Livestylekombi