I am leasing an BMW Alpina B7 soon.I have already negotiated the price.How can I be sure the lease is a good ?

The lease price is based on what they determine they are selling the compact for to you, your credit score, and the residual price(final price at the end connected with the lease.) All of these can vary with the exception out of your score. So lease reduce can divaricate greatly from dealer to dealer, escpecially over a spire of the line limited edition car like that.