Using the Canadian postal code system as an example, the top level's binding concept is the postal district, and consists of 18 objects (letters). The next level down is the zone, where the objects are the digits 0â9. This is an example of an overlapping hierarchy, because each of these 10 objects has 18 parents.
The refreshed 2014 Buick Regal GS can now be had with all-wheel drive, though the added grip does come at the expense of a few horsepower. We already sampled the 2014 Regal GS and walked away mostly impressed, but now itâs time to verify how the sedanâs powertrain changes affect its performance numbers.
GM to End Production of Buick Verano Before End of Year. After weeks of speculation, General Motors has confirmed it is ending production of the Buick Verano, a compact sedan made at the Orion assembly plant in Orion Township, Michigan.