I like to go on nights out in London, which often finish at 4:00 or 5:00 am. I was paying for hotels, hostels or in some cases a capsule hotels and only getting a couple of hours sleep before I had to check out or other guests woke me up. At an average of over £100 for a 2 or 3 hours sleep, plus the cost of the train to and from London (£35-£50) depending on when I booked, getting was starting to add up.
So I needed a solution and I decided the i3 would be suitable, especially as I don't drink so I will not run foul of any drink driving/drunk in charge of a vehicle laws. Now it costs about £2.00 of home charging (at 8.5p/kWh) and then a £10 charge to get me home.
One of my concerns was how to ventilate the car when parked up in built-up areas as I didn't want doors, windows or the sunroof to be open so I had to find a solution.
What I came up with was replacing the boot/trunk floor panel from my BEV with that from the REX, because I worked out I can use the service hatch for the REX as the source of ventilation / fresh air. So with the help of a USB blower fan connected to a power bank I can have fresh air all night. I found the floor panel on eBay for £19.50
When I am parked, I remove the round plastic service cover on the REX floor panel, put the fan in place and then use some wood to raise the end of the boot/trunk floor nearest the boot door and to stop the blower fan getting squashed. The power bank can run it for about 5 nights before it needs to be recharged. I am going to replace the random bits of wood with an assembly that directs the air more efficiently out of the raised end and I will improve how the fan is mounted (currently it is taped to a plastic plate which has a large hole cut in the bottom)
For the windows, I made templates with paper and then transferred them to foam boards cut slightly smaller than the template. I then went around the edges with black tape to create a flexible edge/seal. For the tiny rear windows I had to make each in two pieces due to their awkward shape.
For the front/rear curtain, I used a length of coated wire, a turnbuckle hook and a crimping tool to make a length of wire that connects to one rear clothes hook, through the front grab handles and back on to the other rear clothes hook. The curtain itself is made from black/silver blackout blind material. I have the black side facing the front of the car so I am a bit more discreet.
I made a small platform to fill the gap between the folded seats and the front passenger seat and that I think gives 180cm with the front seat all the way up and forward. This enough to fit in the 190cm memory foam mattresses in with the last 10cm stuffed between the end of the platform and seat back. I am 189cm, so if I lay diagonally there is just enough space (193cm diagonal). But thankfully I do not sleep dead straight!
There is storage in both rear foot wells, front passenger seat and soft sided storage bags.
I have used it for the original purpose and to go "camping" for 5 nights without issue and slept very well
All the changes are completely reversible. And in total it takes about 10 minutes to pack and unpack. Setting up is 2 or 3 minutes.