This example shows US auto sales by brand from 2003 to 2018 as a single blue line chart, with year on the x-axis and sales volume on the y-axis. The chart includes axis labels, gridlines, and a green title. The code loads CSV data from a GitHub gist and uses d3.csv, d3.scaleTime, d3.scaleLinear, d3.axisBottom, d3.axisLeft, and d3.line to render the SVG visualization. The dataset is mapped to date objects and numeric sales values before being passed to the render function.