Purchase advice C70 Coupe

Hello Together, would like to have some expert knowledge and advice about the C70 Coupe from you. Think of me instead of my boring (but good) Golf IV to buy a slightly more exciting car. Is there anyone of the comparisons to both vehicles? Seat comfort, adjustability steering wheel and feel-good factor. (Will you walk to the Volvo dealer on the next occasion, of course) I don’t need a fast car, more important to me is reliability, economy and comfort (want to stay with automatic) – which is the most recommended engine (petrol)? How do you judge the durability of the automatic and how is the fuel consumption? (Has someone values for constant 130km/h, 100km/h and 60km/h according to the onboard computer) What are the smallest possible tire sizes on the C70 Coupe? (My bags are (half) full but with preference to 🙂 ) Are there serious children’s disease, or can you buy any year of year? (Have already read that E-gas is even more negative) Would you like to read out error memory – does this for the golf itself? OBD or the forum does not exist?