David M over at Auto-Future (link finally added on sidebar) has a piece on the new 2008 Ford Ka. We won't see the Ka in the US, but this follows up a piece I did a while back about Ford and Fiat sharing platforms. The Ka, which had been Fiesta based, now will share suspension and other parts with the Fiat 500, and according to David possibly engines.
David is from the UK and does a nice blog on future European models. He's collected quite a few CGI Photoshop images of the Focus, Mondeo, Ka and other European Fords and others. He's had an interesting series of recent posts on "The New Compact" that's worth looking at.