The 'Flame Red' 3DS that came with this past holiday's Mario 3D Land bundle is actually not the same as the standalone Flame Reds:
-One color throughout, rather than the 3-tone design. No metallic silver color around the cart slot either, same color as the body.
-Top doesn't have that super-glossy transparent overlay, the top casing is the same colored plastic as the body.
Makes the 3DS look more akin to one of the metallic colors of the GBA SP, though a bit glossier.