Stop acusing everyone else of making an xB when they decide to make a square car. The boxy car design has been in play for ages, Scion isn't the first to make it popular.
The Jeep. Designed in the 1940's and still VERY popular today.
Morris Mini. Originally designed in the late 50's and built new for the better part of 3 decades. Highly popular and soughtafter today.
Vw Bus. Split-window buses came out in the late 50's and they are so popular they made millions of them over their lifespan and are still made today as Eurovans. Early split-window buses are so sought after if you find one in good shape you can expect to pay as much as 20 times what they were worth brand new.
I didn't even include all the Japanese micro vans of the 1980's
So stop it with all this "look a boxy car so they are copying the xB" horseshit. Scion is no where near the first company to make a boxy car popular.