Zooper vs. P3?

[docb]

Hi,

I think I have narrowed my stroller choices to either a P3 or a Zooper Swing. I think that a child's snack tray would be useful but I'm not sure, in which case I'd go for the P3. I'd plan on using it for walks around town, to the mall, an occasional trip into Boston. What other benefits are there to the P3 vs the Swing? Also, I have a Subaru Outback- has anyone had problems fitting either one of these strollers into the back?

Thanks!