We’ve bought a trailer! It’s for trackdays and trips abroad, further afield. It’s a Debon C400. As luck would have it, it arrived as a part-exchange at the dealer the morning we turned up, so it was in an out within an hour, heh.
We’ll tow it with the Tesla to start with, as that’s what we have, but we plan on getting a towing vehicle to make life a little easier on longer trips - mainly to avoid having to unhitch every time we need to recharge. When towing with the Tesla we are estimating a 125-150 mile range, but time will tell. We’ve only towed it empty, not fully loaded. The normal real-world range is about 250-280 miles, but of course towing something massive and heavy ruins your fuel-economy/range.
It’s to tow the two sports bikes and associated gear for trackdays. Also, we plan on putting the two BMW GS’ in there somehow (without panniers) to take to places further afield. We’ve got a roadtrip planned to Slovenia later in the year and that’s at about the point distance wise, where it starts to get a little bit of a stretch when riding all the way on bikes, considering time off work, tyres, tiredness/enjoyment, etc. Easy in a car where you can share the driving duties and the tyres don’t square off 
Fit-out wise, we want to do a few things to make life a bit easier, but nothing drastic as we want to keep the weight/cost down. We’re thinking Pitbull mounts for all bikes, a few small cupboards, rails to hang things off, skylight, additional lights, perhaps some mats, etc.
Something like these, but without the fitted cabinets…
Pitbull trailer restraints:
