This interactive scatter plot visualizes automobile performance data from the UCI Auto MPG dataset, letting users explore relationships between numeric attributes like horsepower, weight, and acceleration. Two dropdown menus dynamically select which columns appear on the x and y axes, triggering smooth animations as circles transition to their new positions over two seconds. Built with D3 v5, the visualization uses `scaleLinear`, `axisBottom`, and `axisLeft` for scales and axes, while the custom `dropdownMenu` and `scatterPlot` modules handle the menu interactions and SVG rendering with `transition().duration(2000)`.