I know the OEM's cost 2 to 3 times as much as the
Replicas (by Achtuning or Hartmann), so would very much appreciate input on how the OEM's compare to the replicas in the following areas:

Weight (which are generally lighter?).

Strength (which can better withstand badly repaved streets without bending?).

Quality of materials used.

Manufacturing process.

Visible finish (how closely do the replicas look like OEM's?).

Thanks in advance!!

PLease excuse my typo, above. I meant RS4 wheels.