One of the Opel Signum’s special features is its innovative rear seating system. Thanks to a longer wheelbase, the rear seats provide a degree of space and comfort similar to that found in the luxury class. For maximum legroom (up to 985 millimeters), or more storage space, passengers can slide back each of the rear seats individually by as much as 130 millimeters. The seat backs can also be tilted to 30 degree angles. Fully reclined, they are transformed into a spacious and comfortable seating arrangement similar to that found in a commercial aircraft’s business class. And the rear seats can do more. Opel engineers have made the seat’s middle section variable so that it can be turned to form a storage console and the backrest can be folded down to form an armrest. The three rear seats can also be folded forward to create a completely flat loading area. In this configuration, the trunk space amounts to about 1400 liters. Otherwise, depending on the positioning of the rear seats, up to 550 liters of storage space are available.