This interactive scatter plot displays 120 car records from a CSV file, plotting attributes like horsepower, MPG, weight, and displacement against each other. Users can dynamically select which numeric column drives the x-axis, y-axis, point size, and categorical color (cylinders, origin, or year) via dropdown menus. The visualization, rendered as an SVG using D3 version 7, updates axes, gridlines, and legends in real time. Point radius is scaled with `d3.scaleSqrt` to encode area proportionally, while a hover tooltip shows details about individual cars.