This interactive scatter plot displays automobile performance data from the auto-mpg dataset, allowing users to compare any two numeric attributes through dropdown menus. The visualization animates circles transitioning between positions when different axes are selected, with each circle representing a vehicle. Built with D3 v5, the example uses scaleLinear and extent for axis scaling, axisLeft and axisBottom for gridlines, and transition().duration() with delay to animate the SVG circles. Two dropdown menus, created dynamically via a reusable dropdownMenu function, enable selection of x and y axis variables.