This line chart shows the sales of cars in India from 2009 to 2019. The visualization uses a red line to plot the data over time, with the x-axis representing years and the y-axis representing sales figures. The code loads CSV data from a GitHub gist and uses D3 v5 APIs including `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` to construct the chart. The SVG rendering includes styled axes with red tick labels and grid lines, and the line path is drawn with a 4-pixel stroke.