I went to the US in 2014. We landed in San Francisco and had to rent a car. We thought: "we're in america, let's rent a big car" So we rented a "big" car. Then we joined the I101 and we were the smallest car on the road... So with our redefined car we went to the Golden Gate Bridge but we were hungry. So we stopped at a diner. My brother ordered a burger and a small 7up. He got a liter of 7up. He wasn't even halfway and the waitress came to ask if he'd like a free refill (!). To quantify the bigness would be an insult of the bigly bigness that is american lifestyle. Certainly a shock for me.