Im not sure, but the profiles look much better than the stock laced, I didnt think that until I seen them in person compared to stock, they are smooth and sharp.
What Boatman said. Both use tubes but the profile are rounded vs the standard stepped design. I have the profile wheels and think they are a nice upgrade. Less "corners" means a better finish and better 'run-off' of water when parked IMO. If that checks out the finish should last longer on the profiles.
The profiles are supposed to be chrome plated aluminum wheels
While the regular laced are steel
I checked mine with a magnet and it seems to be correct.