Immigration to Azerbaijan quite time consuming and expensive for an upscale camper. Invitations to inspect the booth may help. Import and export carnet plus insurance 220 € for 3-Day-Transit to Iran, no car deposit required and Carnet de Passage not accepted. E-Visa take 2 months in Frankfurt 100 €/Pax through agency. Azerbaijan Police extremely bribe-seeking, speeding, seat belt misuse, e.g. 5 police stops/day and worst ever, so far. Diesel 50 Cents per litre.