Caitlin Duncan. Audi. October 13th , 2017.
The 2.9 TFSI V6 bi-turbo engine, which Audi developed from the ground up, offers sharp increases in power and efficiency as well as an incomparably full-bodied RS sound. It delivers 331 kW (450 hp). And it‘s peak torque of 600 Nm (442.5 lb-ft) - 170 Nm (125.4 lb-ft) more than the previous model - is available across a broad engine speed range from 1,900 to 5,000 rpm. The top model in the A5 family sprints from 0 to 100 km/h (62.1 mph) in 3.9 seconds, and reaches a top speed of 250 km/h (155.3 mph) - with the optional RS dynamic package it can even reach 280 km/h (174.0 mph).
In the induction tract, the intake valves close well before the piston reaches bottom dead center. This very short opening time keeps the fresh gas flow comparatively small. When the piston moves back up again after reaching bottom dead center, the compression phase starts later than usual. This allows a high geometric compression ratio of 10.0:1 - the combustion then takes place in a relatively small volume. In comparison to the short compression phase, the expansion phase is extended, which results in a high level of efficiency.
The chain drive uses a new concept to reduce the drive power required: the crankshaft drives the balancer shaft via gears, with the shaft lying far down in the V of the cylinder banks. From here chains run to the four camshaft sprockets. These are trioval in shape, i.e. they have a slightly triangular shape, in order to compensate for peak forces. The balancer shaft rotates on roller bearings with particularly low levels of friction.
Sporty interior in black and red: the flat-bottomed RS sport leather steering wheel is standard, as are the stainless steel pedals and RS sport seats. As an option, they can be covered in fine Nappa leather with honeycomb pattern. Red contrasting stitching adds emphasis to the steering wheel, center console, armrests, seats and floor mats. Carbon decorative trim underlines the dynamic appearance. The horizontal architecture of the instrument panel creates a vast sense of spaciousness in the high-quality, sportily appointed interior of the new RS5 Coupe. As standard, it welcomes the driver and passengers with illuminated door sills bearing the RS5 logo. LED light guides trace the contours of the doors and the center console - doing so in 30 different colors in combination with the optional ambient lighting. The interior is black. RS sport seats with rhombus pattern and embossed RS emblem underline the character of the high-performance Coupe. They are available in a combination of leather and Alcantara, and feature seat heating and a lumbar support. The RS sport seats are optionally available in fine Nappa leather with honeycomb pattern and contrasting stitching. They are also available in perforated Milano leather.
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