This bubble chart shows the correlation between average horsepower, torque, and highway MPG across 31 car makes, with each circle’s position encoding horsepower and torque while its radius and color represent MPG and make. Hovering reveals a tooltip with the make name. The visualization uses D3 v7 to append SVG elements, scaleLinear for axes and bubble size, scaleOrdinal for color, and transition-based tooltip interactions, reading data from a CSV file. A legend displays MPG values and color-coded makes.