2010 vs 2010 Trunk Differences - Weathertech/Husky Cargo Liner Question

[slucic]

Hi everyone, I used to own a 2010 Camaro now have a 2012. Just bought 2010 Weathertech mats front,rear and cargo and the cargo liner doesn't seem to work as it seems that there are two side bumps in the 2012 Camaro trunk which weren't present in the 2010 or I could have sworn they weren't there. The front and rear mats seem to fit perfectly but the cargo liner seems to just be a flat piece that doesn't due to the two side bumps.

My question is, is there really a difference between the two trunks 2010 vs 2012 or were these bumps in 2010 as well?

Also, is there a difference between the 2010 vs 2012 Weathertech cargo liner? (they have the same part number on the weathertech website and I bought a 2010 one that should be compatible, thinking of buying a 2012 but don't want to spend the money if its the same thing).

Also, even in the Husky liner case is there a difference between the 2010 vs 2012 cargo liner?

Thanks!