wheel sizing

Hello, i drive a 1989 bmw 325i convertible. The PO converted it to AWD, so i don't really know nay of the specs. I was wondering if these wheels will fit.
Rim Width: 8.0 & 9.0
Number of Bolts: 4
Rim Diameter: 16
Offset: 20 & 15
Hub Bore: 57.1
Bolt Pattern:4x100

you are gonna need to be alot more specific when you say "converted it to awd"

there is no awd system that bolts on, so how did he modify it to make it awd ?

Do tell. a AWD vert is very unusual if its even possible. Not sure it would be worth the work either. So, either its a 325ix with the roof cut off or its a vert with a 325ix chassis.

E30's have 4X100 bolt patterns unless its a M3. Rim size ranges from 14-15 stock and 15-16 maybe 17's in the aftermarket area. Depending on offset and fender fitment you could run into problems.

It's a convertible with an ix chassis. The PO was a master mechanic and couldn't get his vert up his driveway in the winter so he decided to make it all wheel drive. It's something you don't see every day which is why I liked it.

IIRC if its running iX gear, the offset needs to be a lot higher more around the et+40 mark
Otherwise your specs are fine but those wheels are no good to you

someone that has owned an iX will chime in sooner or later