I think the you should have picked the poor bugger up and fixed him a drink. Mornings like that for any two-wheeled form of transport is decidedly unpleasant.
BTW, EXCELLENT shot! the redness of the bike is superb, and it's a damn shame you took the picture this week for it would have been a total star in this weeks challenge.
If so, magnify your image a bit and use the Polygon Lasso tool and draw an enclosed line around the object you want to retain colour (in the case, the Vespa). When you are finished outlining the object, click on "Layers", then "New" then "Layer from copy". This will create a new layer from only the outline of the Vespa.
Now make a second Layer of your complete image and de-saturate it.
Take the Vespa layer and place it over the other layers. Done.
Sometimes it's necessary to use the "Blur" tool on the edges of the top Layer. This will blend it into the background a little nicer as it removes bright artifacts (pixels) from the edge of your top layer.
Wouldn't it be easier to make a selection around what you want to keep in color and invert the selection, then desaturate all but your selection? Thats how i did this one.
