Opel Vectra B vs. Mercedes-Benz 200 or 230? Some questions

Hello together. I have now been driving my driver’s license since a Jar and up to long a Opel Vectra B with 75 ps and 1.6 liters displacement. I have now also bought the money together to buy a beautiful Mercedes of the w124 series from the 90s. about 130ps And while there are some questions to ask me: Should I rather get the 200 with 2 liters or the 230 with 2.3 liters displacement? Do you notice at 0.3 liters displacement a difference? Does the 230 consume much more petrol? How about the Le And what’s the most important thing: can you get one with a good kilometer on the clock (200,000) or should it have as little as possible? Do you remember the Opel and the Mercedes a regular tie? (Generally because he has a quite high own weight.In addition, I have driven the Opel so far) I hope I am right in this section of the forum.It has been best past I thank you for every useful answer Greeting Th eDragonAlpha