Countries have laws for exporting used electronics exactly so poor countries dont become dumping grounds. The same should be the case for intra eu vehicles. The German government is blocking such an initiative using the EU, and clocked or high polluting vehicles end up in countries such as a Romania. Poverty and corruption in that country are rampant but that is no excuse to dumping low quality german cars there.

Edit: the gov of romania has already tried taxing old vehicles but was pushed back by the eu. Blind obedience to the eu and self blame wont fix your country.