Comparing TDA7388 and TDA7850 Amplifiers: Sound Quality, Bass, and Heat Dissipation

I warmly welcome.
Well, for a long time I have been planning to build a simple amplifier powered by automotive voltage. I read a lot of topics and the choice fell on one of the TDA chips mentioned in the title. However, apart from the output power, how do they differ exactly? Which, in your opinion, has better sound and bass quality (I care about bass the most)?
Reading the datasheets of both, I noticed that the TDA7850 chip has "MOSFET quad bridge power amplifier" in its name instead of "car radio ampliefier", does that mean it is not intended for car audio applications?
The next question is the thermal power dissipated by both systems, which is 80W. What do you propose to use a heat sink to cool it down?
Thank you in advance for your help.

Both cubes are for the same purpose.

Thank you for your answer.
And will aluminum sheet with dimensions of 15x4x2 cm be able to cool one of these cubes?