I had to shop dealers to find the best deal and an iPace with the particular color and options I was looking. The sticker was around $89k. The San Antonio dealer beat the Austin dealer by a whopping $9500 due to a combination of $2k off the sticker (Austin wouldn't budge) but more importantly, a much better trade-in on my Porsche ($7500 more!). The Austin dealer really was low-balling me on that. With Texas tax law, doing the trade-in saved me the full tax amount on the iPace resulting in another savings of about $5500.
But another route to big savings is that 0%/5yr program. The dealer paid me cash for the Porsche which traded in for more than the cost of the iPace. There was no loan to pay off on that, so I then financed 100% of the iPace for 0%/5 yrs. I took the money that would have paid for the iPace and stuck it in my 2.1% interest-bearing savings account on E-Trade, where I'll take out the payments for the iPace monthly for the 5 years. At 2.1% for 5 years this money puts another $4777 back in my pocket (properly calculating for the declining fund balance in the savings account as the payments come out). In a way this is effectively a negative interest rate loan on the car.
Federal incentives are $7500 of course. I just got the check for the Texas incentive grant of $2500, and Austin Energy paid $1240 for half of my charger installation (a Wifi ChargePoint). I know it is still an expensive car, but with all of those along with the $9500 savings from shopping around I at least feel like the overall deal came out pretty well.
And I'm really loving the iPace too. Interestingly I've gotten more compliments from random strangers out in public on my borasco grey iPace in a month than I received on that Porsche in more than two years.