This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various vehicle makes. Each circle’s position reflects its horsepower and torque, while its size encodes highway MPG and its color categorizes the make. The chart includes axis labels, a size legend for MPG values, and a color legend for makes. Built with D3 v7, the SVG visualization uses `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` with `d3.interpolateTurbo` for colors, and interactive tooltips on mouseover.