Already one of Europe’s most popular cars, the diminutive and good-looking Fiat 500 just keeps getting better. It’s such a diverse platform—from the high performance, MINI-fighting Abarth edition to the recently released 50 mpg TwinAir Turbo, and there’s even hint of a fully electric version—that it seems hard to cram more options into it. But according to a report over at Auto Express, the 500 TwinAir is set to receive a hybrid electric drivetrain that will take it to an amazing 100 mpg fuel economy while reducing carbon emissions to a scant 70 g/km.