This bubble chart shows the correlation between average horsepower, torque, and highway MPG for various car makes. Each circle is positioned by its horsepower and torque values, while the circle’s size represents highway MPG and its color encodes the car brand. Built with d3.v7, the visualization uses `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` for color mapping, and `d3.interpolateTurbo` for the color palette. Hovering reveals a tooltip with the car make. Data comes from `bubblechart.csv` and is rendered as SVG with basic animation transitions for tooltip appearance.