Lightweight Audi A5

hks786 · 02-28-2011, 06:25 AM

TT-RS engine (5 cylinder, 400bhp)
Quattro 60/40 setup
1400kg weight (Aluminium spaceframe + body, plastic hood + bootlid)

Read more: http://www.rs6.com/showthread.php/22...863#post208863

lcrain · 02-28-2011, 08:41 AM

That will be pretty awesome if they actually make it. Love the sound of a turbo 5 cylinder, sounds angry and mean under load.

kyleb350 · 02-28-2011, 09:23 AM

Wow, that's 3080 lbs for us non-metricians. Let's see this in production!

TonyMeister · 02-28-2011, 09:27 AM

I wonder how it would perform in a crash test.

Garduna · 02-28-2011, 09:37 AM

Be great to hear how the journalists react to this

Boost Gomez · 02-28-2011, 11:07 AM

Haha, this is what the RS 5 should have been..

MediaArtist · 02-28-2011, 11:39 AM

Quote:

Originally Posted by Boost Gomez

Haha, this is what the RS 5 should have been..

Love it.

This car would have eaten the M3 for breakfast.

Robert · 02-28-2011, 01:06 PM

I'll jump on this, but I would still rather own a Cayman S.

OBI_agent · 02-28-2011, 02:36 PM

Oh God, if this car had this engine, it would have been the perfect RS5!

Good find HKS

ACZakka325i · 02-28-2011, 04:28 PM

I think Audi got it backwards. Further proving how the current A5/S5/RS5 are failures.

Year's_End · 02-28-2011, 04:29 PM

Why not use an S5 as a base?

Boost Gomez · 02-28-2011, 10:58 PM

Quote:

Originally Posted by Nikkahtropolis

Why not use an S5 as a base?

With the exception of bigger brakes, is there anything that the S5 has over the A5 in terms of braking/handling performance? Not sure as to whether suspension components are different between the two.

BlackMoupe · 02-28-2011, 11:04 PM

"lightweight", so no 4.2 V8. And Audi A Sport pack and S models have interchangable suspension.

JIM E92 · 02-28-2011, 11:18 PM

Nice, build it. I like how the engine is mounted like ours longitudinally. Wonder if they are using Torsen mechanical center diff. rather than Haldex?

Year's_End · 03-01-2011, 12:17 AM

Quote:

Originally Posted by Boost Gomez

With the exception of bigger brakes, is there anything that the S5 has over the A5 in terms of braking/handling performance? Not sure as to whether suspension components are different between the two.

I just assumed they had different suspension components...after some research it's really hard to tell. If the S5 is really just an A5 with a bigger engine I'm actually at a loss for why they'd charge such a big premium for it.

I'm reading that the suspension is "stiffer", but nothing indicates new geometry. Bigger wheels, brakes, and "stiffer" suspension, besides the engine.

footie · 03-01-2011, 05:40 AM

Quote:

Originally Posted by Nikkahtropolis

Why not use an S5 as a base?

This car isn't really an A5 or S5 in anything other than dimensions and appearance, the entire structure is made from alloy with some added CF panels. So your above question isn't really relevant.

Quote:

Originally Posted by Boost Gomez

With the exception of bigger brakes, is there anything that the S5 has over the A5 in terms of braking/handling performance? Not sure as to whether suspension components are different between the two.

Not entirely true, the S5 has it's suspension tuned differently to that of an A5 so while some components remain the same other are different. You need to think of the S range as the equivalent to your top of the range BMW prior to the M model. There are differences to the rest of the range but the differences aren't as dramatic as will be the case with the RS.

Quote:

Originally Posted by JIM E92

Nice, build it. I like how the engine is mounted like ours longitudinally. Wonder if they are using Torsen mechanical center diff. rather than Haldex?

It's TorSen though in the case of this test example I'm unaware whether it's using the latest crown gear quattro system.

What you are witnessing here is the future of how the next A4/5 will be built, maybe not the entire spaceframe being made for alloy but certainly a sizable percentage. At the very least you are getting an insight into what Audi want the next RS5 to be like.

michaelthepsycho · 03-01-2011, 11:34 AM

That's GT3 RS weight range! Very good... But eight cylinders is the minimum needed for no negative torque. Maybe drop an undersquare 2.4T V8 with VGT? Hah... Wishful thinking.

just4kickz · 03-01-2011, 11:42 AM

SOLITE!

Boost Gomez · 03-01-2011, 03:09 PM

Quote:

Originally Posted by footie

Not entirely true, the S5 has it's suspension tuned differently to that of an A5 so while some components remain the same other are different. You need to think of the S range as the equivalent to your top of the range BMW prior to the M model. There are differences to the rest of the range but the differences aren't as dramatic as will be the case with the RS.

I know where the S stands nominally in the range, but what suspension components exactly are different, aside from suspension "tuning?"

E90SLAM · 03-01-2011, 03:50 PM

Audi - Superleggeria!!!

Garduna · 03-01-2011, 03:54 PM

Quote:

Originally Posted by E90SLAM

Audi - Superleggeria!!!

LMAO

E90SLAM · 03-01-2011, 03:56 PM

Quote:

Originally Posted by Garduna

LMAO

I know its against Audi Engineering philosophy...but if its a RWD car...wouldn't it be lighter even more without the complex AWD system???

02-28-2011, 06:25 AM	#1
hks786 Major General 2161 Rep 5,364 Posts Drives: * Join Date: Mar 2006 Location: UK iTrader: (0)	Lightweight Audi A5 TT-RS engine (5 cylinder, 400bhp) Quattro 60/40 setup 1400kg weight (Aluminium spaceframe + body, plastic hood + bootlid) Read more: http://www.rs6.com/showthread.php/22...863#post208863 Attached Images __________________
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02-28-2011, 08:41 AM	#2
lcrain Captain 56 Rep 865 Posts Drives: e36 m3, TT-RS Join Date: Sep 2006 Location: Dallas, TX iTrader: (1)	That will be pretty awesome if they actually make it. Love the sound of a turbo 5 cylinder, sounds angry and mean under load.
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02-28-2011, 09:23 AM	#3
kyleb350 Brigadier General 424 Rep 4,709 Posts Drives: '21 X3MC Join Date: Jun 2008 Location: Milwaukee iTrader: (6)	Wow, that's 3080 lbs for us non-metricians. Let's see this in production!
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02-28-2011, 09:27 AM	#4
TonyMeister Second Lieutenant 106 Rep 204 Posts Drives: Not a BMW... Join Date: Nov 2009 Location: I'm here I'm there I'm F' everywhere I'm the eggman iTrader: (0)	I wonder how it would perform in a crash test.
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02-28-2011, 09:37 AM	#5
Garduna Brigadier General 160 Rep 4,013 Posts Drives: Sedona 1er\|Yellow S3\|NardoTTRS Join Date: Oct 2008 Location: Toronto iTrader: (5)	Be great to hear how the journalists react to this
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02-28-2011, 11:07 AM	#6
Boost Gomez Colonel 51 Rep 2,361 Posts Drives: C63 AMG Join Date: Jul 2007 Location: Miami iTrader: (0) Garage List 2007 BMW 335i [0.00]	Haha, this is what the RS 5 should have been.. __________________
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02-28-2011, 01:06 PM	#8
Robert Major General 414 Rep 6,968 Posts Drives: 135i -> is350 -> Tesla M3 perf Join Date: Aug 2005 Location: Socal iTrader: (1)	I'll jump on this, but I would still rather own a Cayman S. __________________ - There's nothing in my pocket other than knives and lint
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02-28-2011, 02:36 PM	#9
OBI_agent D to the X to the B! 343 Rep 2,106 Posts Drives: ABS,American bargain supercar Join Date: Jul 2007 Location: Dubai iTrader: (0)	Oh God, if this car had this engine, it would have been the perfect RS5! Good find HKS __________________ 11 corvette C6
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02-28-2011, 04:28 PM	#10
ACZakka325i Colonel 277 Rep 2,008 Posts Drives: 2 stroke Join Date: Jul 2005 Location: CT iTrader: (2)	I think Audi got it backwards. Further proving how the current A5/S5/RS5 are failures.
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02-28-2011, 04:29 PM	#11
Year's_End Lieutenant General 1135 Rep 12,444 Posts Drives: 2020 Shelby GT350 Join Date: Feb 2007 Location: FL iTrader: (0)	Why not use an S5 as a base? __________________ Past: '08 E92 335i\|ZPP\|ZSP\|6AT Past: '15 Mustang GT\|401A\|PP\|6MT Current: '20 Shelby GT350\|6MT
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02-28-2011, 11:04 PM	#13
BlackMoupe Mouper 113 Rep 1,064 Posts Drives: _____ Join Date: Apr 2010 Location: _____ iTrader: (1)	"lightweight", so no 4.2 V8. And Audi A Sport pack and S models have interchangable suspension.
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02-28-2011, 11:18 PM	#14
JIM E92 Lieutenant 15 Rep 410 Posts Drives: 2007 328 Coupe Join Date: Sep 2008 Location: Sandy Eggo iTrader: (0)	Nice, build it. I like how the engine is mounted like ours longitudinally. Wonder if they are using Torsen mechanical center diff. rather than Haldex?
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03-01-2011, 11:34 AM	#17
michaelthepsycho Lieutenant Colonel 76 Rep 1,644 Posts Drives: 11 Montego Blue E90 335i Step Join Date: May 2009 Location: CA iTrader: (4)	That's GT3 RS weight range! Very good... But eight cylinders is the minimum needed for no negative torque. Maybe drop an undersquare 2.4T V8 with VGT? Hah... Wishful thinking. __________________ Former car 2011 BMW 335i Step - Montego Blue / Chestnut Brown
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03-01-2011, 11:42 AM	#18
just4kickz boku no namae ha... 336 Rep 11,025 Posts Drives: 2006 BS 330i Join Date: Feb 2006 Location: S. Bay Area, CA + Newark, NJ + ChiCity + True Blue iTrader: (11) Garage List 2006 E90 330i [0.00]	SOLITE! __________________ looking for a PreLCI Black Sapphire e90 front bumper without license plate holes "Akimbo shotguns. Broken wrists anyone? And don't give me that 'it's just a game' bull**. Where the are my akimbo interventions then?! One scope on each eye mother**er!!"
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03-01-2011, 03:50 PM	#20
E90SLAM Supreme Allied Commander 1963 Rep 61,781 Posts Drives: A BBS WHORE Join Date: Jul 2007 Location: . iTrader: (6) Garage List 2022 BMW X3 sDrive30i [0.00]	Audi - Superleggeria!!! __________________
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