Hi there,
Am a newbie to the forum, but a huge E24 fan, having owned a few and until recently owned a minter m635csi, commonly called a M6. The car on trademe is a genuine M635csi, number 239 of 524 rhd.
There are approximately 24 in NZ, and they have the M88/3 engine that was adapted from the BMW M1 twin cam, 24 valve engine.
They are very different cars to the standard 635csi!