A bar chart ranks ten car makes by their highest city MPG values, from Suzuki to MINI, with taller bars indicating better fuel economy. The visualization uses D3 v6 to load CSV data and render an SVG with a quantized color scale from ColorBrewer, mapping MPG values to a red gradient. A tooltip appears on mouseover, and d3-legend provides a color legend, while axes and labels clarify the make and MPG measurements.