現在才算正式公布....
http://www.autoblog.com/2010/02/22/officially-official-audi-rs5-hitting-geneva-with-450-hp-4-2l-v/
節錄重點
1.V8 4.2FSI HDZ (high-rev) redline 8250rpm 450HP/430Nm
2.0-100km 4.6sec & Ceramic Brake as option
3.Base price 77,000歐元 (wow~
)4.7-speed S-tronic & Audi Drive Select
5.RS 5 also efficient - 10.8 liters per 100 km (21.78 US mpg)
6.Newly-developed center differential for quattro drivetrain(Torsen differential不使用了?!!)
New quattro technology: the crown-gear differential
Like all RS models, the RS 5 also applies its power to the road with quattro permanent all-wheel drive. As for the center differential, which regulates power distribution between the front and rear axles, Audi – the leading all-wheel-drive brand – unveils the next generation: a crown-gear differential.
The self-locking crown-gear center differential is compact and lightweight – and attains a high efficiency ratio.
Thanks to its package of plates, the differential can widely vary the distribution of torque between the front and rear axles. If necessary, up to 70 percent can flow to the front or as much as 85 percent toward the tail end. The 40:60 ratio of the standard rear-biased configuration ensures sporty handling.
This new differential operates in conjunction with electronic torque vectoring, which affects all four wheels. If one of the inside wheels becomes imbalanced while the vehicle is at its operational limits, then the system slightly decelerates the wheel to obviate wheel spin. This results in terrific traction on the one hand while generating a yaw moment which aids cornering.
As a perfect complement to the new quattro drivetrain, Audi can optionally position the sport differential at the rear axle. It actively distributes torque between the rear wheels in order to further boost stability and grip at the vehicle's limits of handling. The electronic management of the RS 5 sport differential was designed to be uncompromisingly dynamic.
