1Z einszett Anti-Insekt + Pre-Cleaner (500 ml)
Like a 'pre-treatment' for your paintwork prior to washing. Anti-Insekt contains special cleaners which loosens insects and grime from paintwork, chrome, glass, rubber and plastic gently and safely without harsh chemical solvents which remove wax and polish from the paintwork. Eliminates the need for aggressive, surface-scratching bug sponges. Simply spray on surface, allow to work for 3 minutes then hose off. Formula does not contain enzymes, which can irritate skin, is biodegradable, formalin-free, and environmentally safe.
Take a look - This is the front bumper of a Porsche 911 GT3 with tons of bugs. We were able to remove all of this with 1Z einszett Anti-Insekt Bug and Tar Remover.
Product dwelling before some light agitation with an Uber Boar's Hair Brush
Finally make sure you apply at the minimum a wax on to protect the paint as the Anti Insekt will remove any protection that was previously on there, I would suggest 1Z einszett Glanz Wax