firewood
The EU machinery standards are much stricter than ours and these units refuce the chance of becoming entangled in them because of all the guarding. I can see using either one to cut 12 inch blocks for splitting later.
I would certainly recommend the unit in the foreground as it would make a lot of 12-18 inch cordwood. I would imagine that you can order the double saw with custom cutting length sizes.
About the firewood;
They have a lot of pole wood growing in the EU since WW2 and the long cuts are easier to deal with as they spilit from small diameter blocks.
opcorn: