It is made to go both ways.
The "proper" way is to the rear however.
I feel it really isnt strong enough to support two drinks, but one is fine as its only slid out halfway then.
The design could be better with the cupholder, as it could use some structural stability and reduce flex. It would hold weight better.
I use mine sliding forward and just with one cup (generally the morning coffee).
There was also one sold by Bavarian Autosport (NLA) that included a BMW Coffee Cup.
Husco is long gone, but I think they found the last pallet in Germany
