GM’s next-generation Opel Meriva compact MPV has been caught undergoing testing once gain. Though it remains in full camouflage, many details are still discernible, including the overall shape, which remains close to the original Meriva concept from last year's Geneva Motor Show. The new Meriva is expected to make its world debut at the Frankfurt Motor Show in September and should be sale across Europe by the end of the year. The simple and attractive front fascia, minimalist outlines, and overall configuration remain very close to the concept’s design, however. Small detail differences include the addition of a tailpipe (hidden on the concept) and the removal of the rear roof spoiler and addition of an antenna in its place. A very carefully...