This scatter plot from the UCI Machine Learning Repository's Auto MPG data set visualizes the relationship between a car's horsepower and its weight. Using D3 v5, the code employs `scaleLinear` and `extent` to compute axis scales, `axisBottom` and `axisLeft` for rendering axes, and SVG circles with a red, translucent fill to represent each data point. The chart includes labeled axes and a title, with all formatting controlled by an external stylesheet.