I don't think the current shape Panda is likely to be around for much longer, with rumors an all new model is due for 2011. I think Fiat are much more likely to invest this technology in the 500 as it shares the same platform as the Panda, and has only just been released. We know this because the Panda Aria concept introduced us to the new 2 cylinder 900cc engine by Fiat, which we know for sure they are putting in the 500. That's what I'm guessing anyway, and with the current economy, they might put it on hold and wait for the new Panda to arrive and when the economy starts to pick up again.