https://www.trademe.co.nz/a/motors/cars/bmw/other/listing/2175069642?bof=Ps4WkpjS
https://www.trademe.co.nz/a/motors/cars/bmw/740i/listing/2889928930?bof=Ps4WkpjS
These may not be the absolute oldest but they have definitely been for sale for probably the last 5 years.