The 2+2-seater Audi crosslane coupé is 4.21 meters long (13.81 ft), 1.88 meters wide (6.17 ft) and 1.51 meters high (4.95 ft), with a wheelbase of 2.56 meters (8.40 ft). Its body design comes across as powerful and striking, and it already provides a foretaste of the design language of a future generation of Audi Q models.
The single-frame grille, which is subdivided into several segments by struts, dominates the front end. Its prominent frame is integrated into the Multimaterial Space Frame as a supporting element. This solution symbolizes the philosophy behind the Audi crosslane coupé: a totally new fusion of basic concept, technology and design.
The trapezoidal headlights use Audi Matrix LED headlight technology. Small, individually controllable light-emitting diodes generate all lighting functions, and microreflectors enable their precise positioning. The bumper incorporates large, mainly smooth-surfaced air intakes. Through two narrow openings in the front lid it is possible to glimpse the upper aluminum members of the Multimaterial Space Frame.
Along the sides, the horizontal edges are the dominant feature above the wheels. The low greenhouse tapers into a very flat C-post, emphasizing the coupé-like character of the Audi crosslane coupé. The doors extend a long way down thanks to the space frame design, which allows very low sills. The doors open to reveal the aluminum structures of the Multimaterial Space Frame.
The tail lights are a variation on the motif of the headlights; the trunk lid seam divides them each into two segments. The bumper, the lower section of which is made from CFRP, incorporates an aluminum diffuser that extends quite some way up. The roof element comprises two CFRP shells and weighs slightly less than ten kilograms (22.05 lb). The driver and front passenger can unlatch it by an electric drive, remove it from the body structure and fit it over the trunk.
Pioneering concept: the Multimaterial Space Frame
The Multimaterial Space Frame of the compact Audi crosslane coupé is comprised of three materials – aluminum, carbon fiber-reinforced polymer (CFRP), and glass fiber-reinforced polymer (GFRP). The concept car has an unladen weight of about 1,390 kg (3,064.43 lb), including the large lithium-ion battery.
The aluminum profiles form a continuous, rigid structure around the occupant cell. Beams beneath the front lid join the single-frame grille, which performs a supporting function and is also made from aluminum, with the occupant cell.
The front and rear crash structures are made from CFRP and the supporting CFRP structures inside the occupant cell include the inner sills, the center tunnel, the bulkhead, and the cross-members in the floor. Surface GFRP components with partial CFRP reinforcements complete the body concept.
Audi is convinced that the highly integrated Multimaterial Space Frame is the right path to the future. Its weight is of the same magnitude as a monolithic body of CFRP. It also offers convincing advantages in terms of costs to the customer and its energy usage in a life cycle assessment.