This scatter plot displays the relationship between horsepower and weight for a dataset of cars, with each vehicle represented as a steel-blue circle. The visualization uses D3.js version 5 with an SVG rendering approach, employing `d3.scaleLinear` for both axes and `d3.axisLeft` and `d3.axisBottom` to generate grid-lined tick marks. Data is loaded from a CSV file containing auto-mpg measurements, and the code parses numeric fields before rendering. The chart includes axis labels and a title, with styling applied through external CSS classes.