The best replacement for zr3 is zs3.

The best alternatives to zr3 are rated as following:

Your alternative for zr3 is not listed? Suggest!

No companions for zr3 have been suggested so far.

You have in mind a companion for zr3 and it is not yet here? Propose!

Scale is based on the average worldwide traffic of zr3 in all years. Click on graph for more.

zr3

zs3

zr4