In a nutshell, the first thing you need to do is log in from a next-gen console and wait for Hao to contact you and invite you over to his garage. Here, he'll give you a time trial challenge to complete, after which you will enter his special garage from the first time! Now, all you need to do is buy a membership from Mimi for 50,000 dollars, and you're all set to enjoy the perks of having Hao's Special Works at your disposal!