One of the reasons I said Roadster, not R. Lightweight, in the other thread, was that it didn't look like that with its sidelights; as you say CD/radio etc. not the usual accessories; they're usually not there on a Lightweight (as well as the interior). Perhaps one with the road in mind. It's a 2004, and I believe they (you) presented the Lightweight in 2005; but as a works car perhaps it could be one special, done during that process. Anyhow, on the other picture, a year or so later, it's rear pipes (for stealth arrival?

) and other wheels.