2005 Audi RS4: The RS4 is expected to outshine the radical S4 with a biturbo 4.2-liter/450-horsepower V-8. Now that audi's Quattro division is making RS cars expect more offerings of these potent wolf in sheeps clothing sedans.

Audi speculates pricing of the American RSR to be at or Below $100,000, maybe I'll hold back on the RS6 It's kind of a dog anyway, heavy cars, no matter how powerful, never make good sports cars. A highway beast it is; not a racer.

WANGAN!!!!!!!!!!!

Is it a twin turbo 4.2 v8? Thought it was NA

RS4, not S4

the rs4 cool

any idea if the next rs4 will make it to the US?
i sure hope it does that would be sweet i wish i could buy one.
what do you think it should be avant or sedan?

How is a 450 hp, 0-60 in 4.5 not a race car?

Actually The RS2 has a 4.2L V8 biturbo engine with 450 HP!

The RS4 has a 2.7 liter V6 engine with 380 HP! And its damn fast and luxurious!

Sorry, i have made a mistake!
The RS2 has a 2.2 Liter I-5 with 315 HP
The former RS4 a 2,7liter V6 with 380!
The RS6 has a 4.2 V8 engine with 450 HP !
Now they producing The RS6 Plus with 480 HP and a speed limiter at 280 km/h!