Apparently there is an combined BMW / Merc cruise from Parliment house in Perth to Northam for the "German car day" in Northam.
It's on this Sunday and starts at 9 am.
Good chance for other West Aussie BMW owners to meet.
Cost is $5 for a map of the route.
BMW parts professional
Previous rides:
BMW
E12 M535i (go the dogleg!)
E28 M535i (MMM M88!)
E34 535i M
MAZDA:
RX7 S-IV T04 (440 hp ATW)
RX7 S-I 13b bridge port
RX4 13b peripheral port