Buying a x5 50i

Hi Folks,

New to the forum. After owning a X5 (v8) for almost 10 years(!), decided
on buying x50i again (None of the other SUV's impressed me with the recent test drives).

A couple of questions:

1. The rear windows have tints in them. Is there a way to get without tint.
2. What is the best price right now over the invoice ?
(the only credit available is financing credit for x50i of $1000/-).
Is there a loyalty credit ?
3. What is current waiting time? how do I find it out ?

Thanks.

One bold statement : This will be my last car with an internal combustion engine!

Thanks
Cap Beamer.