I ordered 122cmx200cm to cover rear wing too. I had to remove the rear wing and those two thin plastic lines from the roof. I used a hair dryer with some help from my friend. The you will need to clean roof and start from the middle. See here ho to do it. http://www.youtube.com/watch?v=c4gGFZMLiww&feature=PlayList&p=A2C0582B7F524D7A&index=4
Regards,
Stan
Regards,
Stan