Why does the Bose system in the Maxima sound sooooooo much better than the 350z?

I was amazed at the difference, especially the speakers in the doors. They sounded excellent.

 

same with the bose in my friends altima se-r. it sounds sooo much better. even compared to the bose in my dad's m35.

 

the maxima has has a pretty damn good bose since 1995. Im sure it has to do with the dimensions of the interior, lots more airspace to occupy and bounce waves off.

Bose in smaller cars always sucked. My old 300zx, vettes, 350z, etc.