I've been to the factory. The engine is placed in the car and the car is checked not run in. Sorry the handbook says run the car in . Whoever you spoke to at BMW was not right and hadn't been to the factory.
Sorry the boys at work means the sales garage. Have they been to the factory. ? The engines arrive wrapped from hams hall and are put in the car fluids are injected the computer attached the engine started and the car is gently driven to the transporter. What the boys mean is that tolerances are so good these days the y don't require much running in but all mechanical parts do bed in and hence the recommendations in the handbook. Flo ow the handbook!
Then that's fine but that wasn't BMW. that was your sales person but if you followed it for 1000 then you nearly did 1200 and there won't be much difference. Cars don't now come with running in oil either as tolerances are so good and oil analyses of minis show very little metal so conclusion. Not much running in is needed!
Nb they can never know how you ran your car in any way so many people think it pointless. They don't keep cars either! As long as it's full of oil they can't weedle out of the warranty. An acquaintance didn't check their oil on a brand new Honda s 2000 a few years ago. Now they did get out of that one after it ran dry and seized! After that we are all on our own!