I prefer the grey one more than the black one. My only issue is these rims look really dated on a 2019 Mustang GT. You have style clash. These rims look right at home on a 2005-2009 Mustang because of the classic body lines but look really hideous on a 2018-2019 Mustang body.
Retired but not forgotten
2014 Mustang V6 Performance Pack, Airaid CAI, Automatic 3.31
stock 0-60: 5.8 seconds
tune and cai: 5.2 seconds