differences between b3 and b4 estates

[jasikasisback]

a b3 auto estate has popped up on ebay...if i may ask what are the differences between the two?
I mean the B3 wont have abs and I believe the boot is a little bit bigger (how much I don't know).

As I am unsure if I will get the ABS sorted on my B4 so may be better off getting this B3??

any other differences between b4 and b3 estates???

link here:

http://www.ebay.co.uk/itm/1992-Volkswag ... 3641.l6368