The Peugeot 508 is an excellent vehicle, but does not offer a horizontal zone for applying a Smart phone holder suction cup. However, two cup holders / retractable cans are available at the aerators. The adapter is designed with a progressive tightening and a large smooth circular plate to paste the suction cup. Apart from my travels, I disassembled the support in 2 seconds and closes the support carries cop to keep the panel clean edge.