Turbo Carto is a preprocessor that enables users to create thematic maps with a single line of code, reducing the complexity of writing intricate CartoCSS styles. It connects styling to data, making it an exciting new way to think about thematic mapping for the web. Turbo Carto uses a ramp-based syntax, allowing users to apply properties like size, color, and opacity based on attributes in their data. The preprocessor supports sequential ramps, Color Brewer palettes, and custom palettes, and has built-in defaults for mapping. It also makes bivariate mapping easier by allowing users to symbolize two different properties with multiple visual variables. With Turbo Carto, users can create complex maps without having to hard-code class breaks or update their styles when data changes.