This scatterplot visualizes the relationship between car weight and horsepower, with each circle representing a car from the auto-mpg dataset loaded via `d3.csv`. The visualization uses `d3.scaleLinear` for both axes, `d3.extent` to compute domains, and `d3.axisBottom` and `d3.axisLeft` to render the gridlines and tick labels with the SVG rendering approach. Purple semi-transparent circles are positioned using `scaleLinear` mappings, while axis labels and a title are added as SVG text elements.