Hi m8, to be fair these guys cars are waaay faster down Bruntingthorpe than a stock E55 for example. These are properly laser verified timing guns, and lopes has run 191. I could barely make 181 in my beast. I am however pretty overweight (and my car is too) by comparison.
I tune a few of my other cars and I don't see the value in some of these mods for the intended purpose. Ricky and others track their cars so certain mods are required for repeatable performance.
One thing I won't do is invest a huge bag of cash in cosmetic mods that add nothing which it appears a lot of tuners offer. The problem with the S65 is that there is no space to do anything without removing the engine which I think kind of limits most of the tuners out there who are more plug and play so to speak.
I may just get my car reflashed again and live with that. Underpowered of course but liveable..