This visualization displays a scatter plot of automobile data, plotting miles per gallon (mpg) against vehicle weight for various car models, with each point representing a single vehicle. The plot uses D3 v5’s `scaleLinear`, `extent`, and `axisLeft`/`axisBottom` to construct the axes, with circles styled via CSS. The data originates from the auto-mpg dataset, loaded via `d3.csv`. Axis ticks are formatted using `format(".3r")`, and the plot includes a text label reading "Countries" despite the automotive data.