This interactive bubble chart shows the correlation between average horsepower, torque, and highway MPG for various car makes. Each circle's position maps horsepower and torque, while its size represents highway MPG and its color encodes the car brand. Built with D3 v7 and SVG, the visualization uses `d3.scaleLinear` and `d3.scaleOrdinal` to map data dimensions. Hovering reveals the car make via a tooltip, and legends explain the size and color mappings, with the data sourced from `bubblechart.csv`.