2016 BMW X5 4.0e lease deal

When I compared last month there was HUGE difference between leasing a 2016 vs 2017 X5 40e, something in the neighborhood of $160 per month. My 2016 had a total of $6500 in credits ($2K options, $3500 electric, and $1000 corp. discount). The 2017’s did not match those numbers. In addition the Residuals were inflated to 60% (36/10) for the 2016’s where the 2017’s were at 57% - a huge difference. Again, this was for August and not sure if it’s changed for October.