On paper - yes. You are entitled to over 50% discount of import tax (about $10 000 on Lexus LX470). But in reality this provision is accompanied by so many written and not written restrictions and conditions that a friend of mine in the end paid in kick-backs and bribes and lawyer fees almost the same amount that he saved. $1200 just for three months "storage" in the port only.
Without good and well-connected lawyer dealing with the Customs is very tough. And lawyers here charge from rich gringos alot .
I can speak of only one car related case that I am personally aware of. Maybe other people had more luck.
I can buy one for you in NY at a wholesale closed auction for dealers only. I have licence. It will have guaranteed mileage and accident-free history. And in total will cost several Gs less then if purchased in DR.
Most of the cars are off-lease or trade-ins.
It is possible to find a vehicle to any price range.
Shipping to DR takes about three weeks.
I shipped several cars to Sosua before. If interested - let me know.