Car registration fees while buying second hand car

Hi!

If it is not explicitly discussed on cost of car ownership transfer, insurance while selling/ buying the 2nd hand car then who should pay for the transfer cost?
Options are -
1. Seller
2. Buyer
3. Split the cost as it was not discussed and agreed between parties

Please advise.

Depends, who has the best bargaining skills, there is no specific law for it.

Logically which option would you select?