This scatter plot visualizes automotive data from the UCI Machine Learning Repository’s Auto MPG dataset, mapping horsepower on the x-axis and miles per gallon on the y-axis. Each circle’s radius encodes vehicle weight, with semi-transparent tomato-colored points revealing density patterns. The visualization is built with D3 v5 using `scaleLinear`, `axisBottom`, `axisLeft`, and `csv` for data loading. The SVG rendering includes labeled axes, grid lines via tick sizes, and a rotated y-axis label, all styled with custom CSS for typography and fill colors.