Never-Enough

Curious as to what, if any, the performance differences are between the 2005s w/the A4 & the 2006s w/the A6.

Also, is one trans beefier than the other?

I've been keeping my search to 2006s b/c of the trans thing, but if the A4 is just as good then I may as well look at 2005s too.

keyplyr

When looking to buy my Corvette, I drove both the A4 and A6. The A6 seemed unsure of what gear it wanted to be in. It also seemed a bit too smooth for my taste.

I decided on the A4. The couple of tuners I was talking to at the time also advised to choose the A4 because there was more experience with performance gains. I also liked the fact it was preferred at the drag track.

When I eventually put in a built A4 trans, I really liked the tune possibilities. My A4 trans is tuned for long pulls and I drive it like a stick at the track.

BB 2005

What are my options for Tuning my A4? I just want longer time between shifts so I can hear my sweet exhaust. I may also want to reset it back to stock if my wife wants to borrow the car for the day.

Can I get a tuner device?

Vette5.5

For a street driven car, go with the latest technology. My Vette is an M6 for fun time driving but my daily car is an A6, and no way I'd go back.

Vette_DD

Forum members bone stock 1/4 mile times and trap speeds. How many A6s do you see listed and how many A4s do you see listed in the top 11?

BowTieBlood

I love my '05 A4, but I would tell you to go test drive an '08+ as well. When I was shopping, I narrowed it down to the following choices:

'05 A4, fully loaded (non-performance options), 2.5k miles
'08 A6, no options, ~30.0k miles

They were essentially the same price, but I went with the heads up display and basically zero miles. I will admit, however, that driving the LS3 was a completely different pony and the performance results on the forum prove that. Good luck in your search and make sure you buy before summer hits and everyone else wants one too!

Never-Enough

Thanks, that helps. However, it is most M6s in there.

Is there a strictly auto top 10 or whatever list available?

Vette_DD

Not where I got those. Those are posted in a sticky in the C6 Tech/Performance forum here.

You did notice that an A6 is in first place, ahead of the M6s, right?

And that there are 4 A6s in the top 11?

Never-Enough

Of course I noticed. Just hoping for more data. I prefer the A6 over A4 anyway so I think I will stick with looking for a 2006.

TWINZO6

It all depends on what your going to do with the car. The A6 can not hold up to the power levels that the A4 can, due to the fact that there are more upgrades for the A4.

Never-Enough

Eventually, 600+ WHP via turbo or blower.

To start just full exhaust, some nitrous & maybe a cam.

TWINZO6

^I would lean more towards an A4 then. Rpm Trans can go up to a level 7 for the A4, and that trans can hold enough power to go 9.50s in the 1/4.

magls2

The A4 is a bullet proof transmission which came from the truck division, and course less gears but can take the abuse

It is all about the application

LS1LT1

12.21 @ 115.45 - LS1LT1 - 06 A6


Even though I have an A6 (and I do love it) that has performed so well for me, if I were looking at a used C6 right now I would likely seek a 2005 A4. simply because once modified for drag racing it might still be (for now at least) the better choice over the A6.

gunterwalker

Great Info.

Never-Enough

Also, the car will be my daily driver for the forseeable future. Except for crap weather days of course. So I won't be going buck wild on mods anytime soon.