Why go for such a wide tire? Sure you can get a little more traction on the track but the wider the tire, the lower the performance in weather such as rain (more rubber on the ground means less weight per square inch = hydroplane galore). Not to mention tires that are too wide for the rim just look bad in my opinion. I'm not a fan of sidewalls that that don't curve in a bit, but thats just me.
But tell me, why do you want such a wide tire? Plan on taking the puppy for some auto x?