Back to the topic. I posted this link in the Model S reviews thread, but I am reposting it here because the author specifically refutes the premise of this thread at the end of his review
http://www.windingroad.com/articles/reviews/driven-2012-tesla-model-s/
Here is the relevant paragraph -
"So, if you get the idea that we enjoyed our brief stint in the Model S, you’d be right. But, we need to leave you with an important thought. The Model S is basically a mid-sized luxury sedan with some sporty characteristics allowed by the EV drivetrain. It is not an M5 competitor. The Model S starts with the goal of being a car for people whose ideal focuses on comfort and tranquility, not involvement. If you think about it, the body control and drivetrain immediacy that sound sporty are also comfort improvements, because sloppiness is annoying and distracting. So, it may turn out that Tesla has built the ultimate Lexus. That would be a tremendous achievement for anyone, and is even more impressive for the first full car design from a new company. But don’t be confused, the Model S is not a Tesla Roadster with four doors."
That makes me wonder whether the author saw our thread, or if the comparison is one that naturally comes to mind, thanks to the fact that M5 is priced like MSp but clearly has top line performance numbers that are better, while also looking vulnerable to MSp in a turning race.
If you look at the meat of the comment though he isn't directly addressing performance measurements. The key word he uses is "involvement". M5 takes a lot of skill to maximize performance, while the Tesla is very sedate and requires little work from the driver to push to its limit. It's really an enthusiasts argument. Yes, Model S Performance is fast, but it's ice versus fire.