I have seen many two tone 240s over the years, it always seem to be the area below the chrome trim in the second colour, but have never known whether they were factory original or later addition. I suspect on some of the older ones it was done as a means of repainting the bottom half after repairs without problems with colour match. Certainly the right combinations (which is a very personal thing) can look nice. I would go for it if that appeals to you - I nearly went that route with my GLT. Mike