When making turns or driving over uneven terrain they bend like crazy, especially in the back:
When parked or when leaving garage the rear wheels sink into the ground:
I think ZiKZ should use the TMHS heavy (200kg) mudtires from Tayga and not the AMHS medium (100kg) mudtires like Acteon/Warthog/ANK.
Ideally ZiKZ and ANK should have AMHS in the front and THMS in the back - since dual medium wheels weight as much as single heavy wheels (same on the ANK). This would also solve the problem of rear suspension becoming lower than the front when mudtires are installed on ZiKZ and ANK.