Can I upgrade the wheels on the Vyo͞o2 from the EVA wheels? Does the Vyo͞o2 come with a snack tray? Does the Vyo͞o2 come with seats? Does the Vyo͞o2 contain any PFAS chemicals/ flame retardants? Does the Vyo͞o2 have a footwell? Does the Vyo͞o2 have all terrain wheels? Is the Vyo͞o2 JPMA Certified? What age is the Vyo͞o2 recommended for? What are the difference between the Vyo͞o2 and the XC? What is the difference in the canopy system of the Vyo͞o2 and the XC series?