This example visualizes automobile sales in India from 1999 to 2012 as a line chart, plotting Science (sales) against Age (years) using a time-scaled x-axis and linear y-axis. It loads CSV data from a GitHub gist via `d3.csv` and renders an SVG with `d3.scaleTime`, `d3.scaleLinear`, `d3.axisBottom`, `d3.axisLeft`, and `d3.line`. The chart includes gridlines, axis labels, a title, and a styled path highlighted in blue.