A 7 Series for... occasional weekend use?!
Stick the V70 in the bin and use the E38. Otherwise what was the point?
The point is the e38 was bought because it was something I wanted, not needed, it's actually wholly unsuitable for day to day use for me, I get dirty at work and covered in grease invariably, this I don't want over the cream leather seats neither do I want to transport my two German Shepherds around in it or use it for tip runs etc, there's a high chance of it getting dinged in the work car park not to mention it being covered in crap every day due to the land reclamation site next door to my employers which liberally covers every car with a film of sandy dust daily.
Everyone who's seen the e38 in the flesh since I've had it have been blown away by its condition - it truly is immaculate - and the general agreement is it's far too good to use as a daily which was my original intention so,I'm going to keep the V70 on the road and keep the e38 as an occasional use car which will minimise it's mileage increase and just enjoy it for what it is to me, an exceptional example of a car I've always wanted and something I'm going to cherish and enjoy family time in and perhaps even show it (I've had this suggestion from a few who've seen it)
I caravan quite a lot and in the summer I'll use the e38 (it has a BMW detachable tow bar which has never been used) when we goto Cornwall. next weekend on the other hand I'm off to Ashbourne for a weekend break and I'll use the V70 for that, the e38 will get used but only occasionally and I doubt I'll use it over the winter at all.
It's going to stay under cover at my other halfs house - I have no garage at my place - I could argue why don't you bin your e39 given you don't need it and realistically it'll not increase in value any time soon due to its many miles? You won't because it's special to you and why not keep it?
If I keep my e38 in the condition it's in and don't pile miles on it it'll ultimately only go up in value (which isn't my long term goal more an added bonus) now I've finally found the e38 I've always wanted I've decided not to ruin it by the daily grind when I have a far more suitable hack (the V70) for that purpose.