Originally Posted by
mike wong
real factory M-parallels (either e34 or e38) will cost $2+K per set.
There are no used sets of e34's; however e38's are available used, as there were many sets sold. A good, used set will run $1100-1400. Lower prices are possible, but probably indicative of curb rash or other defects.
E34's are forged wheels; I used to assume the e38's were also forged, but some very knowledgable people say e38 m-parallels are cast by Fuchs.
Replicas are cast wheels generally made in Asia or Italy. The castings are not as strong and may bend easier than OEM. However the cost is lower - $800/set. The finishes are slightly different than OEM; sometimes chromed.
email me offline if you have other questions.
mike