Really? ... I saw it on CNN that you did it!!!(H)
Bhai .. I understand that you were not available for considerable period of time ... so no problem about designing ... Actually, if you go back in prev pages (I hope those posts survived the genocide action of the moderator), you will see that a lot of designs were made by friends and discussed thoroughly ... however, when we came to actual construction of the trunk set up, our biggest enemy was the space limitation.
Corolla has an almost huge trunk, but a lot of space is eaten up by the CNG cylinder. Plus, this is a family car, and my family members did not want to carry the luggage in shopping bags.
We started with 25 inches of width in the trunk, and now MashaAllah, we have 36-37 inches width available. I can say, it has been a success story.