This bubble chart shows the correlation between average horsepower, torque, and highway MPG for various car makes. Each circle represents a car make, positioned by its horsepower and torque values, with the circle’s size encoding highway MPG. The color of each bubble distinguishes the car manufacturer. Built with D3 v7, the visualization uses `d3.scaleLinear` for axes and bubble sizing, `d3.scaleOrdinal` for color mapping, and includes interactive tooltips on mouseover. The SVG rendering includes a legend for bubble size and a color key for makes.