This scatter plot visualizes the relationship between horsepower and weight for cars from the auto-mpg dataset, with each circle representing a vehicle. The chart uses D3 v5’s `scaleLinear`, `axisBottom`, and `axisLeft` to construct axes with gridlines, and renders the points as SVG circles with steelblue fill and partial opacity. Data is loaded via `d3.csv` from an external URL and parsed into numeric values, while margins and inner dimensions position the plot within a 960x500 SVG canvas.