Guy I need your opinion on a 370z lease!!!

Chteelers

See this makes no sense to me. After 39 months, you're gonna spend:
38 * $419 + $2500 = $18422 Total expenditure

If you had bought, here's where you'd be after 39 months (assuming 7% sales tax, 5% APR finance on 7yr loan, same down payment):
$39500 * 1.07 = 42265 Out the door price
42265 - 2500 = 39765 Financed amount
39765 * 1.03 = 41753 Loan total
41753 / (7*12) = 497 monthly payment
497 * 39 + 2500 = 21883 Total you spent after 39 months
19870 Remainder of unpaid loan
30000 Resale value of 3yr old car (based on quick survey of current '09s on Autotrader)
30000-19870 = 10130 Profit from sale of your car after 39 months
21883 - 10130 = $11753 Total expenditure

So after 39 months, you'd have spent 2/3s what your lease cost you. And your monthly payment would be roughly the same (497 vs 419).

The difference becomes more pronounced as you get further out. Assuming you'll move from your leased Z to another leased vehicle of similar value, here's how it breaks down.
5 years
Leased total cost: $419 * 60 +2500 = 27640 (even more if you down pay your next lease)
Purchased total cost: $32k paid - ($28k resale - $9k loan balance) = 13720

7 years
Leased total cost: $419 * 60 +2500 = 37696 (even more if you down pay your next lease)
Purchased total cost: $42k paid - $26k resale = 16000