This example demonstrates a reusable scatter plot of car data from a CSV file, showing horsepower and miles per gallon. It renders SVG circles with axes and labels, with the visualization automatically alternating the x- and y-axis assignments every two seconds. The code uses d3.csv for data loading, d3.scaleLinear for scaling, d3.axisBottom and d3.axisLeft for axes, and the scatterPlot function pattern for reusability in D3 v6.