My rate is 4.05%, no early termination period. When you take out a loan with BMW Finance you are given ALL your payments for the whole period upfront, no tricks just like you say Mavquaire do, BMW Finance have been doing this for at least 16 years from my recollection. If you wish to pay out early one knows exactly what it is without having to ask. This I feel is far better protection than a guarantee when it comes to expensive cars, of which I've had a lot.
Your guarantee, with either BMW Finance or Macquaire, is held in the slightly higher interest rate. Don't believe me? Go to Stratton Finance and ask for the best rate, with no early termination etc. (and yes, true no early termination). You'll get a better deal, just push hard.
You write well, better than I...great...however sorry to say the user always pays one way or other.
If it is true that Alphera will be offering a Tesla finance package that is great, I'll use it to lease my X and 3, or maybe it'll create more competition and I'll go Macquarie. From what the SC chap said, Alphera has been asked to come onboard due to potential Tesla customers continually requesting it, I think that speaks volumes.
For the record I use BMW Finance, not Alphera for the very reason you mentioned, BMW strike a good deal for their customers, which incidentally don't have to be buying a BMW to use BMW Finance, just in case you didn't know.
-ECIT