Which Cars Have Auto Start-Stop? By Make, Model and Year / Mercedes-Benz / SL-ClassMercedes-Benz SL-Class Auto start-stop by year YearAuto start-stop2027Yes2026Yes2025Yes2024Yes2023Yes2022Yes2020Yes2019Yes2018Yes2017Yes2016Yes2015Yes2014Yes2013No Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov).