Hello,
The Bkan 1c, based on the strv 103 chassis lacks the hydro-pneumatic suspension that it had in real life. If this is implemented the gun depression will increase which will really help the vehicle out.
Fire rate and platform:
Platform and suspension:
https://www.ointres.se/bkan_1.htm
Specs and suspension:
I do not know how reliable the second source is, but the third one is from a museum in Sweden. The second and third source are in Swedish. I can translate the parts about the suspension if anyone is interested.