Hummer H3 In Transformers?

TFW2005 has posted pictures (below) from the Cinema Expo International 2008 in Amsterdam. At the Expo is a platform with the Transformers logo and faction insignias along with an H3 sign and a black Hummer H3 on display. In the first movie Ratchet was a Hummer H2; does this mean the Ratchet is getting an upgraded?

Thanks to Russell for the link.