Before there was the Pliko Lite or Si', the Aria was Peg Perego's lightweight answer. It's performed well for many years, but has now had a face-lift, the Vela.
In this front-facing picture, you can see how similar they both look. Roomy seats, snack trays, pretty fabrics.
You can start to see some differences in the back, with the larger wheels of the Vela, and wider wheel base. The brakes are different. It's linked on the Aria, but there are two separate ones on the Vela. The canopy on the Vela, while excellent, is a little shorter than on the Aria. They both still have the same handlebars (without my embellishments), drawstring recline, freedom of movement harness, and big baskets.
Turn them sideways, however, and the difference becomes apparent. See how much farther the front wheels stick out now, with the new design.
Turning the Aria into a 3-wheeler makes for incredible maneuverability. Literally a two-fingered push. And the change from the center button on the Aria handle to the folding bar on the Vela means it's easier to push one-handed. But the trade-off is the longer front, wider base, and an extra two pounds.
Which means the fold is now bigger, too. Longer, and wider. The Vela is also more back tippy than the Aria. Generally, a 4-wheeler is going to be more stable than a 3-wheeler. It's inherent in the design.
Which do I prefer? Well, I'm hopeless. I really like both. As always, it depends on what your individual needs and preferences are. If you want a stroller with the lightest weight, hugest canopy, snack tray, very stable, and compact fold stroller on the market, choose the Aria. If you want all this, but don't mind going slightly bigger, wider, heavier and tippier in exchange for two-fingered steering, choose the Vela.
I can help you find the perfect stroller for YOUR needs. Don't let a salesperson sell you a stroller that won't work for you! For more info on consultations, visit strollerqueen.com There are lots more reviews here, and info on how to get the 2010 BIG Stroller Roll-Out, an online video magazine of all the new stroller models. strollerqueen.com