New England Patriots
You can find merchandise from the Cars films on websites such as eBay, Amazon and Toys-r-Us. These site all offering shipping, and offer different toys at competitive prices.
US
Toys R Us, Target, basically anywhere that sells toys.
Toyota is the car company that sells the most within the United States. However, GM is a car company that sells the second most in the US.
Ford
exxonmobil
general motors
Canada.
ford
Worldwide it's the NBA, no question. NFL fandom barely exists outside the US.
Official MCR merchandise can be bought from their website but if you live in the US I believe there's a shop called Hot Topic that sells band t-shirts too.