Experiences 620d GT

Dear fellow forists, this year a new company car is coming up. Now that I’m touring my fourth 5th, I’m thinking about whether it’s not supposed to be a 6th GT. For reasons of the company car control, different engines than the 20d are not possible. However, I’ve been looking for reports from the 620d for quite some time and I haven’t found anything there except a Belgian side. I did a test drive – but there was a 630d. That’s not 100% comparison of course. bar. Who has a 620d and likes to share his experiences (especially, but not only, in terms of motorization)? Perhaps also compared to the G31, if possible? Thank you in advance.