This bubble chart displays the maximum price for each electric car brand in a dataset of 2020 models, with one bubble per brand plotted along the x-axis and price in Euros on the y-axis. The chart uses D3.js (v7) to load CSV data, group car models by brand, and compute the highest price per brand. Bubble size and color are mapped to price using a sequential plasma color scale, with axis labels provided via `d3.axisBottom` and `d3.axisLeft`.