i just noticed. i bought a new Veyron from the OCD added all upgrades and an oil change, it has 1256 BHP. my older veyron with 100miles on it is 1240BHP. this goes for all the OCD cars the have broken in BHP already...sweet
If you really want to see how they stack up put around 250-275 miles on the one thats already broken in then change the oil, and come back with those numbers.
I've found cars peak power is usually acheived around 250-275 miles with an oil change or rebuild.
I think you should read my post again, I'm suggesting that they aren't broken in all the way, but probably to some extent.
I'm running in my Veyron right now i'll let you know where it tops out after 250 miles. as it sits with 34 miles it has 1256 HP, from my experience it will go higher.
EDIT: Well they do seem to be fully broken in. I put 280 miles on my veyron and changed the oil, it ended up back at 1256 HP.