This fork of a reusable D3 scatter plot visualizes car specifications from a CSV dataset, plotting engine size against horsepower with circle size encoding mileage and color encoding car age using `d3.scaleOrdinal` and `d3.schemeCategory10`. The chart is constructed with `d3.scaleLinear` for x and y axes, `d3.axisBottom` and `d3.axisLeft` for scales, and `d3.csv` for asynchronous data loading. A separate `scatterPlot.js` module defines a reusable chart factory with configurable accessors for dimensions, margins, and radius, following the "Towards Reusable Charts" pattern.