Passat – 1.9TDI in Estonia – Anti-theft?

This is my first post:-) Bi young 21years inexperienced and I plan to go to the cities of Paldiski and Rakvere with my passat this summer for 2weeks. My father, who lived in Russia his youth time, proposes to take our golf3 for the ride – “Estonia are certainly the 1.9TDI coveted and could be stolen quickly, moreover the trip goes through Poland, if the 3 ferries should be avoided” The problem however: a lot of luggage, since a saxophone, Git so avoid golf..My question:Was it a passat 1.9TDI in Estonia? How safe is it with parking, steering wheel lock and lock? I have 18″ aluminium rims, should I maybe use my 16″ winter tires? Thank you in advance for your answers 🙂