For adults, an identity card currently valid is enough.
Minors must have, in addition to the identity card, a parental authorization to leave the country (or a valid passport).
For the car, remember, ownership of car, a green international card, and nationality plate behind.
The European driver's license is accepted.
Prohibition to import meat and dairy products (including cheese).
Compulsory quarantine for animals coming from the continent (6 months).