This bubble chart shows the correlation between average horsepower, torque, and highway MPG across 31 car makes. Each circle represents a vehicle manufacturer, positioned by its horsepower and torque values while its radius encodes highway fuel efficiency, and its color distinguishes the make. The chart includes interactive tooltips that appear on mouseover, revealing each make’s name. Built with D3 v7, the visualization uses SVG rendering, `scaleLinear` for axes and bubble size, `scaleOrdinal` with `interpolateTurbo` for color, and includes a bubble-size legend for MPG values.