I spent months and months trying to get my perfect ABC triple - which I now have 
! I'm a cm too and this is, by far, the best set up for me when I have the right combination of children (I don't at the moment and it is only used occasionally).
I have a single with reclining seat and static seat. I also have two adaptors for the front - either to fix the forward facing static seat or the rear-facing reclining seat. Whichever is not on the front goes on the top.
Originally, I thought I'd want two reclining toddler seats but I now prefer the static seat for an older child.
Whilst it's very long when folded, it doesn't take up any more floor space than the P&T does (even when both extra seats are stored with it). Mine is folded at the end of each day that it is used and takes a couple of minutes to take off the extra seat, fold it, then add the seats back on so that it is as compact and tidy as possible.
It has been transported in the back of my old Renault scenic but i had to take of the handle bar for it to fit.
The single seats are extremely easy to add/remove if you have the adaptor on the handle bar. I did have a double top seat for a while but found it quite heavy to add/remove easily...I was hoping to be able to add it to the front adaptor but it didn't fit, annoyingly.
I have gone through a ridiculous number of singles/doubles/buggyboard combinations trying to find the ultimate (from a cm perspective) and I do believe this is as close as it gets. The only downside for me is that it won't fit in the boot of my Zafira (ha, ha, it's taken me a few doubles to realise the only double that will fit is a P&T with the wheels off
) so I do have one buggy more than I'd ideally like.
Every now and again I consider selling the ABC because it's not being used much at the moment but I know if I did I'd regret it as soon as another small childminded child came along.
Sorry this is so long but could quite happily waffle on about ABCs all day long !!