This example visualizes the relationship between fuel efficiency (mpg), horsepower, weight, and origin for various car models from the Auto MPG dataset sourced from the UCI Machine Learning Repository. Each circle represents a car, with position encoding mpg and horsepower, color encoding origin, and size encoding weight, all rendered using the vega-lite-api with D3’s CSV loader. The visualization uses a customized configuration to improve readability, featuring larger axis labels and dark text on a light background.