C6 A6 published times I have seen . . .

From Motor Trend:
0-60 mph 4.6 sec
Quarter Mile 13.0 sec @ 112.2 mph
Link:
http://www.motortrend.com/roadtests/...s_pricing.html

= = =

From Car and Driver:

12.8

March 2006.
Page 128.

= = =

From GM:

0–60 mph, automatic 4.5 sec. (coupe/convertible)
Automatic 12.9 @ 110 (coupe/convertible/Z51)

= = =

From Car and Driver test of the GTO w/400HP & 6 speed manual:
13.3 @ 107


- Ray
Afflicted with upshift & downshift lag between paddle command & beginning of shift execution in my 2007 A6 . . .

 

Hey thanks, thats good info...

So Car and Driver has the Vette at 12.8 and GTO at 13.3 in the 1/4 mile...

So if some Vettes do have the "sluggish" tranny issue like people are saying they're experiencing, it's very feasable that the GTO would be faster on the drag strip... I mean I know .5 sec is alot but that can be easily eaten up by a crappy shifting tranny...

Thats not good. I hope the GM people at viewing this post and if there is indeed a sluggish tranny problem (seems like there is bc so many people are experiencing it) they figure it out and correct it!!! Such a deviation in A6 tranny performance can't be due to driver skills, not with an automatic...

 

Well, I doubt GM is much concerned, given:

The GTO is not being produced any longer.

The numbers you asked for were C6 w/ A6 trans.
The GTO number of 13.3 that I gave ( for reference ) was with the 6 speed manual trans., as I stated.

Not the A4 trans.

The GM number for the C6 w/6 speed manual trans. is 12.6 – or 12.5 for a Z51.

The GTO, if the drivetrain & suspension & interior & ( actual, negotiated transaction ) price were your priorities, and you were comparing it to a Corvette, could have been a bargain.

The A6, in Sport Mode, and allowed to shift without paddle ‘intervention’ does shift quickly enough to provide good & consistent shifts & Quarter Mile Times below 13.0 in the ‘real word’.

Since my 2007, after a year of production and ( potentially ) a year to address this issue with some sort of change to either the trans., the electronics, or both, suffers from essentially the same problem, to the same degree as the 2 2006s I test drove, I think this is something GM does not see as needing to be ‘fixed’.

I’d also really like GM Powertrain \ Chevy \ Corvette engineers to ‘fix’ the fact that the A6 equipped C6s do not ( or at least mine does not ) perform what the C6 Brochure describes thusly:

“Squeeze either of the two steering wheel-mounted paddles towards you and the available six-speed automatic transmission shifts down at lightning speed, the throttle adjusting automatically with each downshift for smooth transitions.”

Sounds like ‘rev matching on downshift’ to me.
No such thing occurs when I paddle down. . .
( sigh )

- Ray
Still, overall, VERY pleased with this 2007 C6 . . .
Really.

 

Ray, I've seen this posted before and wondered myself if it was true so I started paying closer attention to what was happening during a downshift. I "think" I can feel what they're talking about, but only if I'm giving it partial throttle during a downshift. If I'm off the throttle, no dice.

Next time you drive the car, squeeze the throttle and hold it, then downshift. I think there is rev matching happening, subtle as it may be. As for lightning speed, I think it's a generous way of comparing it to the upshift speed, which is slow and unsure.

 

I have no issue with my A6. My 06 A6 runs very strong with no lag at all .

 

Sounds good. Did Chuck have to have your car on-hand or was this a mail in?

 

I'm also curious about "tuning" posts often claiming better shifting and accerleration. Sounds good to me. But are GM engineers lame to not get the shifting and accerleration right for best performance or is this GM saying we will make sure you go easy on our drive train never mind performance because it's a warrantee issue?

jer

 

I've found a couple times when my A6 downshifted and I let off throttle, then got back on it and the transmission acted like it was in neutral...reving up but not engaged. Maybe it's a delay time. Or the freakin' transmission confused thinking, "what do I do now?"

Either way what I experienced is just not right. And I'm thinking that's the frustration others sometimes post here.

jer

 

I just want to chime in here so I keep getting thread updates, but I have had my 2007 C6 A6 since 12/06 and currently have 3000 miles on the car.

Yes, the paddle shifts when used have a slight delay, but that does not bother me, I use them for fun around town, not for racing.

When racing the 1/4 at the track I would just put it in "S" mode and let the tranny shift itself which it does far better than I can.

As for the tranny auto-shifting itself it is OK, I have not had the opportunity to really experience too many full throttle shifts on my daily commutes, but I ave noticed it does not feel as crisp as the shifts on my 2005 C6 A4/3.15.

My father drove the A6 and he said it almost felt as if it was slipping, but I think it might be the tranny getting confused sometimes as to which gear to shift in to.

As the weather gets warmer hopefully I'll find a few chances to see what the 2007 really has, I don't know if it can equal the kick when the A4/3.15 kicks down from 2nd to1st at 25-30mph

Howard

 

hmmmmm.. my 06 A6 shifts faster with the paddles then I can shift my 94 vette manually. Im very happy with it. With the A6's lower 1st gear the torque is amazing. However I only use the paddles for fun, when "at the track" I put it in S for perfect shift points every time.

 

After my tune it was pretty scary until I got used to it, now it fun for me but it still gets quite a reaction from some of my passengers.

 

I am here to say that the A6 kickdown at 25mph is brutal .

 

I look forward to it.

My A4/3.15 is violent, in fact it often will start spinning the tires at the top of 1st before it shifts to 2nd.
I find it smart and fastest to leave TC ON at all times.

Howard

 

The six-speed paddle-shift automatic transmission on Coupe and Convertible is improved with new hardware and a new controller calibration that deliver quicker shifts. This change bolsters the feeling of performance and driver control when using the shifting paddles.

This was the blurb from GM regarding the 2008 A6 changes. I wonder when it comes out, if that "new hardware" and "new controller calibration" can be applied to my 2007 A6. That and getting the new
style 2008 FOB:

"The ‘08 Corvettes also come with a new Keyless Access fob, which features the key and remote-function controls integrated in a single unit."

 

And 06.

 

I owned a 05 LS2 a4 GTO, and it was scary fast, nail it from about a 20mph roll and it would sideways.

I now have a C6 A6 i bought used with 4500 miles, in S mode without using the paddles it will flat out get up and go. I can feel the diff compared with the my 05 GTO and the 06 A6, and the C6 feels faster, maybe not by a huge amount but it is faster.

But also the gearing of the A6 and weight diff help favor the C6.

Chas

 

I love step # 4 the most!!