My interest in this game just went up a lot. The graphics show the developers are at least trying, the motion controls (with the exception of the driving) look like they've been implemented well, and all the other stuff that made me watch through the first trailer are there too.
Obviously the breakable terrain and physics will not be quite as complex, especially since this is the same version as with the PS2, but there were already games that did those things decently last gen.
Might still get the PC version if the Wii version ends up worse than expected, though. =/