Europeans don't buy weapons from Mac Jee / Brazil! They and crazy Lula work together with our biggest enemies Ruzzia, China, Arabia.

A lot of rubber track systems are about as durable as traditional steel tracks but when broken, they normally required the whole track to be changed (which for many vehicles, means being transported to a FOB with a motor pool via recovery a vehicle) and this could take hours or days - depending on the military in question. With a metal track, you just change out the damaged section and the vehicle's crew can often do that in the field. It may be quicker or it may take just as long but it doesn't entail as much of a logistical burden. Traditionally, countries that operate in urban environments (and don't want to damage the roads) and have well-resourced militaries have been the users of rubber tracks. Developing countries may operate a handful of vehicles with rubber tracks (i.e., for anti-terrorism operations) and really poor countries may not bother. Many countries use rubber pads on their tracks to gain some benefit but these wear out comparatively quickly. Composite track systems like these seem to have made their ‘rubber’ tracks as easy to maintain as steel tracks and sometimes even more durable. The reduced vibration (which exceeds the reduction provided by tracks with rubber pads) is a big benefit; especially in modern battlefields wherein first-rate powers are involved, as they may deploy sensors designed to sense mechanised vehicles’ vibrations. Plus, crews will appreciate it. Plus, these composite systems (and some of the more recent rubber tracks) allow for quick and easy maintenance. The Soucy Track is apparently on the Land 400 Redback and crews said that was their favourite vehicle after long, rigorous testing. Australia really beat the heck out of those IFVs (particularly the Redback and the Lynx) throughout a selection process that took years. So, if this track is on that vehicle, it’s probably very tough.

Sadly, yes, the limit appears to be around the 40-50t mark. However, the tech is improving all the time - the limit used to be less than half that.

10 - 12 km

if we take into consideration that steel tracks are multiple parts combined together by bolts and pins and the rubber track is just one piece Artillery fire can have an effect on both but i believe a rubber track is easier to replace and to carry to the front to repair than steel more if you have to replace multiple pedals on the steel track its a pain for the crew