This D3.js v7 example visualizes Hyundai sales data over time using a smooth area chart. The SVG canvas displays a skyblue filled region, with a time-scaled x-axis representing years and a linear y-axis for sales figures, both rendered with grey gridlines and red tick labels. The code imports specific D3 modules including `scaleTime`, `scaleLinear`, `axisLeft`, `axisBottom`, and `area` with `curveBasis` smoothing. Data is loaded asynchronously from a remote CSV file, with the sales field parsed as numeric and the year field parsed using `timeParse`.