LittleSS

Wander

I doubt you will find many reports of A/B comparisons of the different wheel packages on the same car. Unless your goal is to achieve an additional 0.02G on a skidpad or track, I suspect the dominant difference will be the active suspension on the Advance. On anything other than glass-smooth pavement the active suspension should have an advantage. And even on glass-smooth pavement it probably has an advantage in controlling body roll, especially for transient maneuvers ( twisting turns ).

I am very impressed with the handling of my SH-AWD Advance.

ToniRDX19

MI-RDX

As has been mentioned already it's unlikely you'll find any direct comparisons other than possibly in a test environment. The 3 real world differences between the A-Spec versus 'regular' tires/wheels are:

1 - Width: A-spec tires are .7" wider (10" vs 9.3") so you have more rubber on the road. But keep in mind they also have different tires, not just a different size of the same tire.

2 - Sidewall: A-spec sidewall height is .6" shorter (4.5" vs 5.1") so all else being equal - which it's not - will result in a harsher ride because there's less tire sidewall to absorb road imperfections. But the shorter sidewall will make for a more stable tire during cornering.

3 - A-Spec tires also call for 36psi versus 33psi for other trims which will, again with all else being equal, result in a harsher ride.