Paso Robles Sparkling Wine?
Here's the description of the JanKris sparkling peach wine from their Web site:
JanKris is proud to introduce the newest in our family of flavored Sparkling wines, our Sparkling Peach. Beginning with 100% French Columbard grapes treated with a secret winemaker’s recipe, it is given its signature essence and bottled into peach perfection.
So basically it's a horrid grape and they add peach flavor to it. I don't think serious wine people would consider it wine, even though it is grape-based.
Robert Hall has made a sparkler and so has Arroyo Robles, but you generally don't get good sparkling wine from hot climates. It's more of a cooler climate wine for the acidity. I think sparkling Shiraz proves that.