The EU’s CO2 fleet legislation, which mandates the end of combustion technology in new cars after 2035, is under pressure. The German Christian Democrats will enter the European elections with demands to revise the combustion engine ban. According to EU rules, the next Commission could propose revising the CO2 fleet legislation and revoking the ban on combustion engines in the process. Another possibility would be to allow manufacturers to count e-fuels towards the CO2 fleet legislation.