This parallel coordinates visualization displays automotive data from the 1970s and 1980s, with each car represented as a polyline crossing seven axes for metrics like economy, cylinders, power, and weight. Using D3 v3, the SVG-based chart renders gray background lines for all cars and steelblue foreground lines that filter interactively. A d3.svg.brush component on each axis allows users to drag and select ranges along a dimension, dynamically hiding lines that fall outside the brushed extent. The code loads car data from a CSV file and applies linear scales with d3.scale.linear for normalization.