This bubble chart shows the correlation between average horsepower and torque across car makes, with bubble size encoding highway MPG and color distinguishing each manufacturer. The visualization includes interactive tooltips that display the car make on hover, alongside legends for both bubble size and color categories. Built with D3.js v7, the chart uses SVG rendering with scaleLinear for axes and bubble sizing, scaleOrdinal for color mapping, and d3.csv to load the dataset.