If you do a Google search on ‘removing car
badge’, ‘de-badging a car’ or similar search, you’ll see there are lots of videos on YouTube showing
how to remove car badges / emblems. They pretty much all use heat (hot air gun or hairdryer) dental floss or fishing line and a tar / glue removal product to remove adhesive residue that‘s left behind once the
badge has been removed.
A word of caution when using a heat source on a car’s paintwork; too powerful a heat source or concentrating the heat source on a specific area for too long, and there’s a risk of damaging the paintwork! Although arguably a hairdryer won‘t be as effective a heat source as a hot air gun, it‘s probably the safer option.