I asked that question but they said that it didn't, and I've not got an autobahn to test it.Did it come with the top speed increase? When performance upgrade pack was an option (and even those that had it many early cars not even coming with the spoiler fitted for some reason), it was the car being configured with spoiler that governed the top speed increase.
I'd have thought that it'd be coded separately, unless my car is unable to distinguish itself from a P+?