Sorry I missed the CH point then
Importing a car from Swiss, if you haven t been a Swiss resident coming back home in EU means VAT on the car value and 10% import taxes.
If you were living in CH and returning home in EU then the 10% wouldn t apply, should you have owned the car in Swiss for a reasonable period
Likely, buying a CH car is a bad idea, unless the price is very cheap which is usually not the case