Yes indeed the LKR8AP are the correct part number NGK 4471 I believe.
I ended up getting a second set form Amazon direct after suffereing with B2C Autoparts...if its too good to be true right?
The P stands for platinum plugs. They must be platinum. The only difference between those and the stock BMW plugs is a little BMW roundel on them...although the ones I pulled when changing didnt even have those. They were exactly the same...