Volkswagen premieres the XL Sport prototype. A car developed based on the XL1 model -the most efficient car in the world that reaches a speed of 270 km/h- already the new ducati 1199 Superleggera -the most powerful bicylindrical motorcycle in the world. The Volkswagen XL Sport, therefore, the result of the synergies developed by Volkswagen and Ducati brands.
Technical data
The weight ratio (890 kg), the power (147 kW / 200 hp) and the aerodynamics (CW x A = 0.44 m2) convert the Volkswagen XL Sport in the only 200 hp car that reaches 270 km / h. To achieve this milestone, aerodynamics are especially important: the resistance factor of 0.44 m2, calculated from the CW coefficient (0.258) and the frontal surface (1.7 m2), is one of the best values obtained so far. More if we take into account that it responds to the concept of sports: wide wheels, a greater demand for refrigeration air and an optimal descense force.
Other measures that improve aerodynamics are:
- The Special Curtains Air Curtains (which conduct the front of the front selectively through the channels)
- The ventilated wheel steps
- The optimized low
- The air driving channels reducing ascension force in the hood
- An extensible rear wing (with the propeller of the Lamborghini Aventador)
- Adaptive holes for heat escape integrated on the rear gate (sheets, which, if necessary, open to evacuate the heat of the engine)
Engine
The engine that equips the XL Sport is similar to the V2 engine of the Ducati 1199 Superleggera, which generates a displacement of 1199 m3. The two cylinders of four valves, positioned at an angle of 90 ° one with respect to the other, have a demodromic valve control system.
On the other hand, the XL Sport equips a new intermediate gear that reduces engine speed with a 1.86 factor. The V2 motor torque (134 Nm) is transmitted to the rear axle through the 7 -speed double DSG DSG clutch change.
Chassis
The chassis design is made up of a double transverse oscillating arm axle with Pullrod configuration shock absorbers (joint as a lower traction bar) and a double oscillating arm rear axle with Pushrod configuration shock absorbers (articulation as a higher thrust rod).
The high speed tires of 205/40 R 18 (in front) and 265/35 R 18 (behind) are mounted on forged magnesium tires, which is a reduction of 23.9 kilograms with respect to the assembly on aluminum tires.
The Volkswagen XL Sport brake system consists of ceramic records.
Bodywork
The Volkswagen XL Sport body is similar to that of XL1, since they share the same constructive base. The common central element is the body consisting of numerous pieces of plastic reinforced with carbon fibers (CFRP) and a monocasco that includes seats for the driver and the companion arranged in parallel and slightly displaced.
The density of the CFRP, with respect to the specific weight, is only 20% of an external coating comparable to steel with the same rigidity and load capacity.
Folding doors forward
The folding doors of the XL1 and XL Sport models are coupled to two points of the body by joints: under columns A and in the ceiling frame. Thanks to this, the doors go down and slightly forward. When the doors open, the space to enter and exit the car is very wide.
The door windows are polycarbonate. To reduce weight, the upper area of the side windows is fixed fixed to the door lining. In this way, it is possible to open a segment of the lower section. The windshield of both models has been manufactured with a specially thin glass.
Dimensions and design
The Volkswagen XL Sport is remarkably longer and longer than the XL1. It has a length of 4,291 mm (XL1: 3,888 mm), a width of 1,847 mm (XL1: 1,664 mm) and a height of 1,152 mm (XL1: 1,153 mm). The battles also increase their length to 2,424 mm (XL1: 2,224 mm).
The design concept is based on the design of XL1. However, monolithic surfaces extend more muscularly over the fenders, clearly more wide, and large wheels. His extreme proportions and his precise lines give the XL Sport a wide and flattened appearance.
- Front design: The front width of the XL Sport has the double LED headlights, which provide a daytime driving light to the XL1. On the side headlights of the XL Sport are the air inlets for the Air Curtains that guide the air optimally bordering the front and the sides. The XL Sport lacks the typical grill that characterizes other models. However, the prototype design adapts to the current Volkswagen design, which is based on horizontal lines.
- Silhouette design: If observed from above, the shape of the prototype resembles that of a classic sports car in which the doors are retracted forming the waist. If the gaze falls laterally on the fenders and the doors explains why. Air inputs and outputs are located in the fenders and doors, in columns A and B respectively. The prototype does not have exterior mirrors, since they have been replaced by tiny cameras located in the folding doors. These cameras act as digital exterior mirrors (e-mirrors) representing the space behind the car on two screens located inside. In front of the rear wheel steps, the "Motore Ducati" emblem that refers to the 1199 Superleggera engine located in the rear is integrated.
- Rear design . The rear of the Volkswagen XL Sport is remarkably wider than that of the XL1, with striking shoulders (energetic and wide surfaces on the wheels) and an extensible rear wing that expands almost throughout the width of the car.
- Interior design: The interior of the XL Sport is based inside the XL1. However, it has a digital dashboard that, together with the oil pressure, also indicates the corresponding times by return. A thin carbon plate prolongs the visor located on the instrument frame thus eliminating any type of reflex. The XL Sport steering wheel has red contrast seams. It also has anodized aluminum details in the area of air, air conditioner and change control panel DSG. The seat belts are red, we match the contrast seams of the steering wheel.
