Small version of me squeezed up in so-called convertible (5,5)
I believe the answer is:
scale model
If this is the answer I cannot explain how the clue works.
Can you help me to learn more?
(Other definitions for scale model that I've seen before include "proportional representation" , "Perhaps an orrery" , "Reproduction at reduced size" , "It's not the real thing" , "faithful representation" .)