How exactly do you remodel a brand icon? Well, if youíre Scion, you go big. Scionís hip little van has grown significantly in just about every direction for 2008. The wheelbase is up 4 in., itís wider by 3 in. and overall, itís a foot longer. And thatís made it much more appealing to the small families who can put that room to good use. The old xB wasnít the type of car youíd like to take on long trips. It drove a bit too much like the economy car it was. No more. The new one feels substantial, like a car from the next class up. Yet the price remains in the base-ment. The chassis is all-new and the xB gets four-wheel disc brakes for the very first timeóstandard. Thatís a feature normally optional or unavailable in cars costing less than $20,000. Under the hood resides a 158-hp 2.4-liter inline four-cylinder paired to either a five-speed manual or a neat sequential-shift, four-speed automatic. The powertrain helps the xB keep pace with most cars on the road. The softly tuned suspension means the xB isnít a sports car. But on the other hand, its around-town comfort may be best in class. Inside, the engineers have added more insulation and sound-deadening material to make the xB a quieter box. And it worked: This car is very refined for its price tag. So much so, one PM senior staffer just added a new xB to his garage. And thatís a strong endorsement of this carís virtues.