Here's a good looking Vespa concept I found during one of my online travels...
The fictional Vespa is from designer, Daniele Pesaresi who I think has done a brilliant job on delivering a really modern and aggressive but at the same time, retro-looking Vespa. It's certainly doesnt't stray too far away from the newer GTS models available these days so, in a way, is also quite realistic.
Very, very nice.
Unfortunately, the thing with concepts is that it's just that. A concept. Even if Piaggio decide to hire Mr. Pesaresi and take up his design, concept designs are normally just limited to trade shows and would usually never see the light of day anyway.
Ah well, we can always hope can't we?