I briefly tried it with window down and I thought it was better, but will have another go when this bl@@dy rain stops!!
I would say the improvement in in the detail and warmth in the mid and high ranges - the sub is still not great.
I think the bass have gotten a bit tighter/punchier and not as muddy/mushy. Not much but you can feel the difference. They probably redid the EQ curve and maybe even changed some of the crossover points between tre/mid and bass.







