also the Benz SLR have some maclaren techneces, i'mnot sure if it's engine.
A performance shop in here, upgraded the E55 supercharge with extra twin turbo that took it to 700hp, they had a problem in bistens and connect rod ..so they ordered the SLR bistens and rod, and it work fine now in our 45 dgree.
the turbo kit is for 34,000 US dollars, computer modifed from AMG programer that will allow superchange to work untel 80Klm then the twin turbos start their job.