Well, it was bound to happen eventually, I just wasn't expecting it so soon. According to an article on thedigitalbits.com, Disney will be releasing Cars on Blu-Ray in June. And because of the amount of extra content and the ridiculously high resolution of the movie on the disc, they're going to be releasing it as a 2-disc (dual layer) Blu-Ray package.
Just to put this into perspective here, a standard DVD (such as the single-disc DVD of cars that came out last year) holds 9GB of data. A dual-layer Blu-Ray disc holds 50GB of data. And they're using two of them!
For demonstration purposes, here's what you can expect the difference in quality to look like:
Cars on Blu-Ray
Cars on Standard-Def DVD
Now if only they had given the Incredibles as a 2-disc Blu-Ray release. Then I might be actually tempted to buy a Blu-Ray player.