I have one that looks very similar to this LINK which I have lent to my father in law before and he drives 58 plate Golf.
Unfortunately I am not sure exactly what volume my one as its pretty old now and can not recall the model.
Edit:
Also the legs come apart similar to this which may not be obvious intitially
would say it's pretty unlikey you'll get the cement mixer into your golf. Those things have like 6 wheels and must weigh 20+ tons
Is it downhill between the hire places and yours?
I was joking about towing it, please don't do it OP.
rotfl hahah
I got a rented mixer in the back of my mk4 Fiesta, so I'd have thought a Gold won't be smaller.
I did have an audience watching me as they thought it wouldn't be possible and I did get the headlining dirty.
Ask and you shall receive