hello I want to ask. If I from HKIA to shenzen using Minivan how much ?

Hengfeng Business Car-renting Company is a good one and I heard it from one of my friend. I am not very clear about their number. The price depends where you plan to go in SZ.
If you are not travel in a group, the car renting is not necessary. You can take the direct shuttle bus to SZ directly or take the ferry. The transportation between the two places ar frequent.