This scatter plot visualizes the relationship between horsepower and weight for cars from the UCI Machine Learning Repository’s Auto MPG data set, using red semi-transparent circles. Built with D3 v5, the code loads CSV data, applies linear scales, and renders SVG axes with tick marks and labels. It uses `d3.csv`, `scaleLinear`, `extent`, `axisBottom`, and `axisLeft` to construct the chart, with formatting applied via CSS classes for titles and axis text.