2014 vs 2015 Auto
Thread Starter
Melting Slicks
Joined: Sep 2000
Posts: 2,404
Likes: 418
From: Chester Virginia
2014 vs 2015 Auto
IS there any 'real' performance difference between the 2014 w/ the 6 spd auto and the 2015 w/ the 8-spd auto? The Chevrolet published times in o-60 and the 1/4 mile are the same, just wondering if there is any difference in the 'feel of the car' being faster. I am thinking about getting a new 2014 instead of a new 2015. The money is no different because the 2014 is a 3LT and the 2015 is a 2LT. Just don't want to loose the 'feel of the pants' acceleration.
Instructor
Joined: Feb 2015
Posts: 138
Likes: 7
From: Boydton VA
I cannot offer an answer yet as my car is built and waiting shipment. I drove the A6 and I do not expect there will be a noticeable difference. Somewhere in the million pages I reviewed prior to ordering someone said that they thought the A8 kept the engine in the proper RPM at all times enhancing the drivability. I think if you have found a good deal on the 14 and like everything else optioned on it then the A8 should not be a concern. Hopefully some folks on here with experience in both will weigh in.
Team Owner
Joined: Apr 2008
Posts: 22,364
Likes: 1,683
From: South Carolina
Here is how this will play out...the a6 guys will say not enough difference to matter...the a8 guys will say yes its worth it...
"personally" I say there is a lot more to the decision than just 0 to 60 and 1/4 mile times...Its all the different scenarios in normal day to day that matters most. To me this is where the a8 is better. Its all the normal driving nuances and you can't find a place where the a8 isn't happy and ready to roll.
I also think a 14 is now almost 2 years old and even a 3lt will be worth a lot less than a comparable 2lt three years from now...(conjecture for sure) but 3lt has very little advantage over 2lt. imo
If you're getting a 14 it needs to be a really great deal comparing to a good deal 15...
"personally" I say there is a lot more to the decision than just 0 to 60 and 1/4 mile times...Its all the different scenarios in normal day to day that matters most. To me this is where the a8 is better. Its all the normal driving nuances and you can't find a place where the a8 isn't happy and ready to roll.
I also think a 14 is now almost 2 years old and even a 3lt will be worth a lot less than a comparable 2lt three years from now...(conjecture for sure) but 3lt has very little advantage over 2lt. imo
If you're getting a 14 it needs to be a really great deal comparing to a good deal 15...
Last edited by hawkgfr; Feb 20, 2015 at 03:19 PM.
Race Director
Joined: Feb 2014
Posts: 12,243
Likes: 97
From: Center of the Universe, Alabama
The A8 is the latest and greatest but it's a first year transmission so time will tell. My A6 hasn' t found an "unhappy" place yet so they shouldn't be disregarded. Performance times between the two are a few hundreds of a seconds with each having it's advantages.
The 3LT/2LT comparison is subjective to your wants and needs. Do your own research & listen to the posts that say "you should get what I got cause it's the best" with a grain of salt.
The 3LT/2LT comparison is subjective to your wants and needs. Do your own research & listen to the posts that say "you should get what I got cause it's the best" with a grain of salt.
Racer
Joined: Jan 2015
Posts: 388
Likes: 6
From: Far West
You getting a Z51 or the Base?
Rear end ratios are different for 2014 and 2015. Obviously the one with the lower rear end would probably be quicker out of the shoot.
2014 Base model rear end is 2.56, Z51 is 2.73
2015 Base model rear end is 2.41, Z51 is 2.73
Here's a website with all the ratios and gears. Scroll down about 1/3 of the way. Lower first gear and higher final ratio on the 2015.
Hope this helps, good luck.
http://media.chevrolet.com/media/us/...peed-lead.html
Rear end ratios are different for 2014 and 2015. Obviously the one with the lower rear end would probably be quicker out of the shoot.
2014 Base model rear end is 2.56, Z51 is 2.73
2015 Base model rear end is 2.41, Z51 is 2.73
Here's a website with all the ratios and gears. Scroll down about 1/3 of the way. Lower first gear and higher final ratio on the 2015.
Hope this helps, good luck.
http://media.chevrolet.com/media/us/...peed-lead.html
Melting Slicks
Joined: May 2008
Posts: 2,162
Likes: 114
From: Prosper, TX
There is a definite difference in how fast the car shifts with the A8, but only under heavy acceleration. It is lightning quick at those times. Driving around town you won't notice the difference. On a track, you definitely will - no more searching for the right gear. This is always a 'touchy' subject so approach carefully
Melting Slicks
Joined: Jun 2004
Posts: 2,648
Likes: 2,933
From: NW Indiana
St. Jude Donor '05 thru '24
I purchased a used (3k miles) 14 A6. It was the right car with everything I wanted at the right time and right price. Could have gone with a 15 A8 and spent more but didn't feel it necessary. It is a vert so it will be used mainly for cruising around on nice days. I feel it comes down to what is most important to you and how you will use it. If you like the 3LT options, go for it. If the A8 is more important, go for that. Either way you will land up with one helluva car.
Drifting
Joined: Nov 2014
Posts: 1,782
Likes: 106
From: Salado TX
I don't know about the A6 because I don't own a C7 with that old technology....just kidding guys.
What I notice about the A8 is when you are just driving the car, it gets in as high gear as it can as soon as it can. Right around 30 mph its already in 4th gear. There's probably no noticeable difference between the two the great majority of the time.
What I notice about the A8 is when you are just driving the car, it gets in as high gear as it can as soon as it can. Right around 30 mph its already in 4th gear. There's probably no noticeable difference between the two the great majority of the time.
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Le Mans Master
Joined: Jan 2002
Posts: 5,891
Likes: 1,199
From: Ft. Myers FL
My C7 will be a year old next month but I can say this the A6 shifts like lightning too.
However, if I had the same choice and they were the same money, I'd go for the 2015.
The difference for a 3LT vs a 2LT...who cares? 
However, if I had the same choice and they were the same money, I'd go for the 2015. The difference for a 3LT vs a 2LT...who cares?
Race Director
Joined: Oct 2005
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From: Plymouth Massachusetts
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I got a huge difference in price in buying a used 2014 A6 over a new 2015 A8 but if money is not a issue or the price of the cars is close go for the newer 2015 A8 like Mike said.Good luck
Instructor
Joined: Feb 2015
Posts: 110
Likes: 3
From: Temple Terrace Florida
IS there any 'real' performance difference between the 2014 w/ the 6 spd auto and the 2015 w/ the 8-spd auto? The Chevrolet published times in o-60 and the 1/4 mile are the same, just wondering if there is any difference in the 'feel of the car' being faster. I am thinking about getting a new 2014 instead of a new 2015. The money is no different because the 2014 is a 3LT and the 2015 is a 2LT. Just don't want to loose the 'feel of the pants' acceleration.
Safety Car
Joined: Jun 2005
Posts: 4,905
Likes: 569
From: Bucks County PA
I cannot offer an answer yet as my car is built and waiting shipment. I drove the A6 and I do not expect there will be a noticeable difference. Somewhere in the million pages I reviewed prior to ordering someone said that they thought the A8 kept the engine in the proper RPM at all times enhancing the drivability. I think if you have found a good deal on the 14 and like everything else optioned on it then the A8 should not be a concern. Hopefully some folks on here with experience in both will weigh in.
I think with more gears there will be less rpm drop between shifts which will keep the car at a better rpm making more power. Due to this the A8 should trap better.
I also feel the A6 takes 2 less shifts to get through the 1/4 and that is faster and better for pure drag racers.
I also say, if I were buying now I would get the A8.
Drifting
Joined: Nov 2014
Posts: 1,782
Likes: 106
From: Salado TX
That was my opinion although I own a 2014 A6.
I think with more gears there will be less rpm drop between shifts which will keep the car at a better rpm making more power. Due to this the A8 should trap better.
I also feel the A6 takes 2 less shifts to get through the 1/4 and that is faster and better for pure drag racers.
I also say, if I were buying now I would get the A8.
I think with more gears there will be less rpm drop between shifts which will keep the car at a better rpm making more power. Due to this the A8 should trap better.
I also feel the A6 takes 2 less shifts to get through the 1/4 and that is faster and better for pure drag racers.
I also say, if I were buying now I would get the A8.
