Hm, decent?
We'll see how these decent speakers will sound in 14 years from now on.
Main thing is not the speaker quality, but that there frequency response and sensivity fits electronically and acoustically to the installation situation and the rest of the system. So the volume of the cabin and the volume of the "box". OK most of these "car hifi speakers" are electronically designed to run free air. And there coil tolerances are pretty high to run under very cold as well as very hot and humid conditions. So that is nothing you would tolerate in home hifi.
In general a processor with time alignment, active crossover and eq in a car is much more important for a good staging and sound than a high end speaker.
Or you use passive components to get there. Which in the end is more expensive to develop.
And by the way. These 2 way Alpine or whatever speakers have nothing to do with decent or very good quality. The crossovers in these things are as crappy as the speakers themselves. But hey, if you believe in brands, believe in brands.
Regards, Markus