As someone who owns a much lower powered E39 Touring, that self levelling rear suspension will need looking at for starters, then what everyone else has said too.
They are fookin' massive inside, the seats are fantastic but I miss the fold down arm rest from the E34 seats, SE spec is so comfy but kind of wallowy, that said you can arm wrestle it at impressive speeds down quite narrow roads. The air bags on the rear do a good job of dialling out a fair bit of the bank angle when you tip it in round a corner.
Not that it's important to you, but I hate those wheels, it is important to stick to 16s to maximise the amount of tyre sidewall though otherwise you start losing that beautiful comfort.
We can swap for a bit if you want to try out what an E39 is like.
@Dammit
As someone who owns a much lower powered E39 Touring, that self levelling rear suspension will need looking at for starters, then what everyone else has said too.
They are fookin' massive inside, the seats are fantastic but I miss the fold down arm rest from the E34 seats, SE spec is so comfy but kind of wallowy, that said you can arm wrestle it at impressive speeds down quite narrow roads. The air bags on the rear do a good job of dialling out a fair bit of the bank angle when you tip it in round a corner.
Not that it's important to you, but I hate those wheels, it is important to stick to 16s to maximise the amount of tyre sidewall though otherwise you start losing that beautiful comfort.
We can swap for a bit if you want to try out what an E39 is like.