Upcoming Audi RS5 to receive the same engine found on the R8

Nice! But I am a bit confused, why offer the same engine in the R8 with less hp and fuel economy?

R8 4.2 V8 is rated at 420hp. I wonder where they're getting the extra 30 hp. They said the valve-lift isn't suited to the higher rpm's, also I've seen twin intercoolers on some of the test mules.

joe are you that dumb?

sorry that was for david969

joe the r8 has the RS4 engine and a v10 engine

the hp rating is 420 but I am sure audi will put this in the r8 if it is true

I know the hp rating on the v8 is 420, and I also know the mpg rating on the v8 R8 is also 13/18mpg... If the RS5 comes out with 450hp and better economy then that... then there will be even less appeal in the v8 R8.

With a base kerb weight of 3 891 lbs (1 768 KG'S)on the S5 and 450 bhp (337 KW's), it should have a power to weight ratio of 190. The M3 has a P/W ratio of 187, so, without a serious diet, the RS5 will be marginally faster than the M3. One thing's for certain, it will be a lot more expensive.

This engine was in the RS4 first, then in the R8. What's cheap about a 420-450hp 4.2l V8? If that's too cheap for you they have a V10 R8 coming out....oh wait why am I trying to be reasonable..

LMAO!!! (@ TheLanciaFan)

wowow

This will come with Audi's Drive Select (ADS) and sport differential as standard so the weight and torque distribution will be vastly improved. Also, there will be the 7-speed DSG dual-clutch gearbox and a high-revving V8 with 450 horsepower.

My call is $75K for this thing considering the previous generation RS4 was already in the mid $60s and this will have the hugely expensive ADS and sport differential systems as standard.

Beautiful car. Hopefully they won't make that silly tilt-only sunroof standard, so someone with my build (tall, long-waisted) will be able to fit in it.

Sounds fishy. Audi has yet to prove they can pull well over 100hp/liter out of a N/A engine. Not to mention they seem to be going back to forced induction (09 S4).

The RS4/R8 have a first generation of Audi high rev engines, the original Gallardo used the same technology and made 500+ of of a 5 liter engine. The Gallardo LP-560 has a revamped version of the Audi high RPM engine concept. It makes 560 out of 5.2 liters. The RS5 will use the same technology. 560/10= 56 horsepower per cylinder in the LP-560, 56*8 = 448 in RS5.

I'm sure the RS5 will be a great car, but it's a little early to presume anything just because of a non-official horsepower figure. It's not just about power figures, the RS5 will be much heavier than an M3. A C63 AMG has more horsepower than the M3 or RS5 (and a LOT more torque) and while it's marginally quicker than an M3 in a straightline the M3 is still faster around a track. A CTS-V has a TON more horespower and torque than an M3 (or the RS5) and is only a few seconds quicker around the Nurburgring than the M3 is. Maybe the RS5 will outperform the M3, maybe it won't. This doesn't tell us anything other than that it will have a few more hp.

Do you really think Audi will allow the M3 to be faster? So you can say without a doubt the RS5 will be faster, especially on the track.

"So you can say without a doubt the RS5 will be faster, especially on the track."

no, you can't say "without a doubt" that the RS5 will be faster. The A5/S5 is heavy. It's more likely it'll be "quicker" than the M3 than "faster" than the M3 -- there's a difference. Maybe it'll be both. Maybe it'll be neither. I'm not going to assume anything just because "Audi wouldn't allow the M3 to be faster". I'll let the cars sort it out.

Yeah you can say without a doubt.
The A5/S5 may be heavy, but the S5 is hardly heavier than the M3 and seeing as the previous RS4 was lighter than the S4, maybe the RS5 will be lighter than the S5 too.
Another example is the RS6 beeing more then 250kg heavier than the M5, but that doen't stop the RS6 from beeing allot faster around a track.

henbmw = david969 but for BMW

evlaudi=hates everybody.

One thing they forget to day is that actually, that engine... will be TURBOCHARGED.... Big difference.

The mistake isn't putting the same V8 that was in the RS4 into the RS5, the mistake was putting that engine in the R8 in the first place. A nicely equipped R8 currently stickers at around 130K. Ridiculous. The less expensive '09 Carrera S will easily out perform the 09 V8 R8. And the upcoming V10 version of the R8 is priced in the 160K range or higher depending on equipment.

"The less expensive '09 Carrera S will easily out perform the 09 V8 R8."

So what? An even less expensive GT-R or Z06 will also outperform both of those, and which one would most people rather own? The R8. Why? Because it's exclusive. Because it looks like a million bucks. Because it's not a Nissan or Chevy or 911 (which as great as they are there are a zillion of out there and they all look pretty much the same). There's more to cars than speed.

No comment, versus C4S;
http://www.metacafe.com/watch/850666/audi_r8_vs_911_targa_drag_race_drivenmag_com/

Versus 911 Turbo, skid pad and slalom;http://www.edmunds.com/insideline/do/Drives/Comparos/articleId=119925

Versus C2S;
http://www.youtube.com/watch?v=MBVhL7CpPOc

And I could go on and on and on. Only a GT3 and of course a GT2 can bog down an R8. it has been proven over and over.