OK - looks like I've sorted selling the Twizy as PEX for £3,000... So that leaves me with two things... The official "Twizy Bag" and a Kenneth's Powerbox (with case / instructions, etc. as new) which I bought in May... Any takers?!
I reckon £200 for the Powerbox would be a steal - it totally transforms your ride - add maybe a fiver for postage. The Twizy Bag I'll sell for £80 but I'm not going to remove the "clips" which are fitted to the Twizy - I actually don't clip it in when I use it anyway, and you'll find that the rear seatbelt functions perfectly well! (The official clips are rather awkward to use - you need to be a contortionist to get your hands into the right place to clip in / out...) - I'll need to figure a shipping cost if anyone is interested in the bag.
First come, first served!...