A8 vs M7 Update.
#41
Race Director
Member Since: Oct 2000
Location: Deal's Gap 2004 NCM Motorsports track supporter
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Have known that satisfaction many times in my manual C5Z since 2005 at many tracks east and south. I still remember the first time I went for a heel/toe - at Road Atlanta. Never looked back. I am now getting to the age of inverse split desire; to row and to not row. I even find the Audi A8 technically satisfying although completely separated from any road feel in the traditional sense. The transmission and mild hybrid system are a technical marvel. Far removed from my teenage days of rowing a ten speed roadranger in a deisel tractor/trailer rig or international loadstar with 2 speed axle.
#42
Melting Slicks
The good points were that it did perform well and got good mileage (taller gearing in the Stingray helped), but my A8 had every malady known to exist in the species, including the infamous shuddering, delayed engagement, etc. None of this was repeatable in any predictable way at first, and for the dealer to warrant it I needed to present the problem to the service writer on the spot. The delayed engagement only occurred when cold and about once every month, and the shuttering started out sporadic and never would present itself when a service writer was in the car, but as it got worse I was finally able to demonstrate it. In February 2017 the TC was replaced, which was the approved fix at the time. Even though the tranny was out of the car for the TC replacement they would not address the o-ring issues that caused the delayed engagement because I never could demonstrate it to Chevy personnel. When I picked the car up from the dealer I got the delayed engagement, which was the final insult being that I was the only one in the car to witness it. Disgusted, I went home and immediately started shopping for another C7 with, you guessed it, an M7. I'm at five years with my current GS and I've had not one problem with it. Life is good again, but I still agree with Patfitz that it is an individual preference, and I assume by now they've addressed the issues with the A8, which apparently turned out to be the fluid, not the TC as originally addressed.
Last edited by iclick; 02-01-2022 at 08:52 PM.
#43
Drifting
So, on to the A8. Well, I must admit I miss the popping and burbling exhaust on overrun and the gutsy sound of the V8 with a manual transmission, but. The gear ratios on the A8 appear to be very well chosen. The shift dynamics also are very good, progressive use of the accelerator cause the box to hold gears. There is a nice amount of engine braking even without using the paddles. The paddles are nice, but I very rarely use them.
Here are some interesting things you can do with the A8 if you didn't know:
- Giving the accelerator a quick blip (smash it to the floor quickly) and you can activate performance shift.
- Holding the downshift paddle at any time will drop the car to the lowest gear it can.
- Holding the upshift paddle will return the car to normal drive mode (if you switched to manual while in D or activated performance shift)
- You can actually leave from a stop in 2nd. Just upshift while stopped.
- Some gears vibe better with each other. If you slow down you'll notice your car downshifts from 3-1. If you're driving aggressively in manual mode and skip shifts (double tap down from 5-3 or 3-1) there is very minimal delay, and the car gives a nice bark. I suppose it's giving more throttle to rev match to a higher rpm.
- The trans shift speed is dependent on how you drive. If you drive slow and pedestrian then the transmission will shift the same way. The more throttle you give the more aggressive the car shifts (up and down).
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SouthernSon (02-04-2022)
#45
Race Director
No problems with automatics in most vehicles but an automatic (slushbox) sports car is a non-starter for me. Been daily driving manuals exclusively for 15 years and I'll continue doing so until there is no other option. The main reason I didn't consider a C8 is the lack of a 3 pedal option.
#46
Melting Slicks
That was my main reason for getting the C7 as an MT is a must have for me. According to Tadge, despite his being a rabid MT fan, due to the small and declining sales of MT 'vettes (<20%), the economics and space available to install the MT in the C8 led them to delete the manual option, with no intent to add it later...
#47
Racer
It took me about 1 day to get used to the m7, it’s easy to feel if it’s all the way in gear after you drive it some. I guess this sense comes easier to some people?
#48
Racer
for me it was a combo of looks and no manual option. I just can’t get down with the c8 from the rear quarters back. Good thing is, there’s enough great options for all of us.
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NortonCO (02-05-2022)
#49
Burning Brakes
Gm A8
There’s a long list of GM owners that would disagree with that statement:
https://gmauthority.com/blog/2022/01...ssion-lawsuit/
The full list of affected vehicles in this class-action suit includes:
https://gmauthority.com/blog/2022/01...ssion-lawsuit/
The full list of affected vehicles in this class-action suit includes:
- 2015-2019 Cadillac Escalade/Cadillac Escalade ESV
- 2016-2019 Cadillac ATS
- 2016-2019 Cadillac ATS-V
- 2016-2019 Cadillac CTS
- 2016-2019 Cadillac CTS-V
- 2016-2019 Cadillac CT6
- 2015-2019 Chevrolet Silverado
- 2017-2019 Chevrolet Colorado
- 2015-2019 Chevrolet Corvette
- 2016-2019 Chevrolet Camaro
- 2017-2019 GMC Canyon
- 2015-2019 GMC Sierra
- 2015-2019 GMC Yukon/Yukon XL
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NortonCO (02-05-2022)
#50
Advanced
That said, as I contemplate ordering a C8, it makes me more confidant about ordering a (shudder) automatic.
#51
Drifting
Most of my vehicles have had manual gearboxes. I grew up on a farm just south of Port Jervis, NY and my first car in High School was a 63 2 door Biscayne with 3 on the tree. At 15 I was working cutting lawns and saving my money so I could build my own car. (My Dad and both Uncles are Hot Rodders and I wanted to be like them). I found a wrecked 66 Chevelle with a 327 and a Muncie M20. I did the swap myself because my Dad was working out of state. I loved that car and drove it until I graduated, joined the Army and never moved back home. My Mother sold the car for me and with the money I bought a 68 Firebird 400 4 speed. After that I bought a 70 SS Nova, 396, 4 speed, bench seat, Factory 4:10 12 Bolt, heater and radio delete, rubber floors, no power steering, and no power brakes. Sold it when I transferred to Germany in 1977. In Germany I owned an Opel Rekord with a 4 speed on the floor. Back in the states, I bought a 75 Camaro with a 4 bolt main 400 and Muncie M22 (Not stock with the car). I also had a 75 Chevy Monza that I built into a drag car with a 350, Muncie M21, narrowed 12 bolt and a full cage (Bad fast car at the time). In the 90's I owned a 93 and then a 94 Z28. Both M6 cars. In 1999, I sold both 75's and bought a 69 Camaro SS 350, Muncie M21 that need restoration (The wife's car) and a 69 Corvette Roadster 350, 4 speed that also needed alot of TLC. In 2008 I added a 71 Nova SS 350 4 speed to the stable (It needed a bunch of work). I finished the Camaro in 2001 and still have it. I finished the 69 Vette in 2004 and sold it in 2012. I bought a 99 MN6 Corvette convertible in 2011 and traded it for a new 2013 GS MN6 convertible. I sold the 71 Nova in 2012. Fast forward to 2016. The wife tears the miniscus in her left knee and even after surgery, she can no longer push in the clutch pedal. The manual cars have always been driven by the two of us after we married. We bought a 2015 Camaro SS with the A6 trans and she loved driving it. The tough decision was made to trade in the 13 GS for the 19 GS A8 convertible. No regrets. I am a manual trans fanatic but sometimes life can steer your choices. Unfortunately, the wife can't drive the 69 Camaro anymore but it is her car and I get to take her for long drives like all the way from Jefferson City MO to Sturgis SD for the Sturgis Camaro Rally.
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hanks10GS (02-06-2022)