Audi is adding a high-end soft-top version of its RS 5 Coupe model – a stunning combination of prestige and power. The RS 5 Cabriolet offers almost the same performance as the coupe. It is powered by a high-revving, naturally aspirated V8 engine with FSI direct injection. Its 4.2 liter engine delivers 450hp at 8,250 rpm and offers a maximum torque of 317 lb.-ft. between 4,000 and 6,000 rpm.
Audi RS 5 Cabriolet has a curb weight of 4,420 lbs. and could easily go from zero to 60 mph in 4.9 seconds. The car has a top speed that’s limited to 174 mph. Meanwhile, it offers a fuel economy rating that leads in its class. It also qualifies for an exemption from the gas guzzler tax.
The RS 5 Coupe’s essence is still evident in the exterior and interior of the Audi RS 5 Cabriolet. When the top is down, it just needs 2.12 cu-ft. of its 13.42 cu-ft. trunk volume. The split rear seatbacks could be folded over individually while ease of access functionality is improved with a load-through hatch from the trunk to the rear seating area.
The convertible body is even more rigid due to special reinforcements. It uses aluminum front fenders to offset a portion of the additional weight of the reinforcements. The new LED light strips are able to illuminate the headlights and taillights without the use of any conventional incandescent lamps. Just like the lights, the rear bumper also gets a new design. The diffuser has been placed higher. In addition, a honeycomb screen insert encompasses the two big elliptical tailpipes of the exhaust system.
For more downforce, there is a subtle matte carbon spoiler lip on the trunk lid. The sport seats feature power adjustments, high side panels for the best possible lateral support, integrated head restraints, a lumbar support and a pull-out thigh support. The seats use leather-Alcantara upholstery while seats in black or lunar silver Fine Nappa leather are optional.
All the leather types have been pigmented to lessen heating by sunlight. By just pressing one button, the soft top opens in 15 seconds. Closing it is just as easy and takes just 17 seconds. Opening or closing can be done even when the car is being driven at speeds of as fast as 30 mph. For additional comfort in hot summer days, the optional climate-controlled seats can be used when the top is down.
The latest version of Audi’s quattro drivetrain – featuring a self-locking crown-gear center differential and torque vectoring – is now fitted in the new Audi RS5 Cabriolet. This new drivetrain has two crown gears rotating inside the differential. While front crown gear drives the output shaft to the front differential, its rear counterpart drives the propshaft to the rear axle. These crown gears interact with four rotatable pinion gears as laid out at right angles to each other.
During normal driving conditions, the two crown gears rotate at the same speed as the transmission output shaft (differential housing). These gears feature special geometry, which means they have unequal lever effects. As designed, around 60 percent and 40 percent of the engine torque are typically sent to the rear and front differentials, respectively.
Should the torque levels change due to an axle losing grip, speeds and axial forces inside the differential becomes varied, prompting the integrated sets of plates to be pressed together (self-lock). This action redirects the majority of the torque to the axle with the better traction. When the front axle has less traction, up to 85 percent of torque can be sent to the rear axle. Meanwhile when the rear axle has less traction, up to 70 percent of the torque can be sent to the front axle.
This broad torque distribution range makes the crown-gear center differential exceed that of its predecessors. Since the crown-gear center differential could consistently transfer torque virtually without any delay, it helps achieve instantaneous response and optimal efficiency. This crown-gear center differential is also compact and weighs just 4.8 kilograms (10.58 lbs).