Article Comments - 2007 GMC Sierra Denali Full Test

128 messages, Last post on Mar 28, 2009 at 1:25 PM

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Article comments for Full Test: 2007 GMC Sierra Denali - The 2007 GMC Sierra Denali is GM's top-of-the-line luxury pickup, but it emphasizes the truck part of the equation as much as the luxury part. (more)

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#18 of 128 Re: 2007 GMC Sierra Denali Full Test [markisliev] by guysykes May 25, 2007 (5:36 pm)
Replying to: markisliev (May 25, 2007 4:42 am) Thanks. It's hard to sleep at night. Lots af anxiety. Haha. This truck drives like a dream, and you should see the looks of envy you get at a stop light. Well, I ordered mine May the 5th, and my dealer e-mailed me today and told me that my order had been scheduled for the assembly line this morning. He said it would be 7-14 days before it's built, and an additional 14-16 days for shipping, so 40-55 days from order to delivery. There was no sticker, because it didn't exist yet. I e-mailed two dealerships and listed the options I wanted and asked for an out the door price. One tried to get me to come look at a fully loaded one for 50,000, and the other gave me what I asked for. Mine was 38,750 TOTAL, but the only option I had was 20s. for an all wheel with navigation, sunroof, power rear window, back seat dvd, and heated steering wheel it's 47,500. I'm not paying 10,000 for two TVs and a sunroof. Bad news for you though. The deadline for ordering 2007 Denalis was the 16th of May. You will now have to find one on the lot, or wait for 08. If you race it, let me know how it does. Toyotas are the ugliest trucks I've ever seen. Inside and outside. In all, a horrible truck design. If I worked at Toyota, and a designer showed me that crap, I would punch him right in the mouth, and fire him. But, I would drive one.............if it was free...........and then I would drive it straight to a dealer and sell it, and put the money towards my REAL truck. A Sierra Denali.
#19 of 128 Wanna be by markisliev May 26, 2007 (9:29 am)
You just can't compare the Denali and a Tundra. The Tundra is just so damn ugly. What the hell were they thinking? Fisher price looking interior and a wanna be dodge exterior...at least my Nissan was kinda handsome! Replies to this message: shujat (May 27, 2007 7:59 am)
#20 of 128 Sierra Denali by shujat May 27, 2007 (7:59 am)
Replying to: markisliev (May 26, 2007 9:29 am) Hey Everyone, New to the forum here. I just picked up my new Denali Sierra AWD, black on black on Friday. First of all, in my opinion, I really think this truck is built solid, and the powertrain is very smooth unlike earlier models, possibly because of the 6-spd, smoother revs. I agree this truck has no comparison, since it leads the market in power, and luxury appointments. I hope this truck will last me for the next 6 years because thats how long im financed in for. Sammy
#21 of 128 5 yr. / 100,000 mi by markisliev May 27, 2007 (8:44 am)
Congrats Sammy, Well atleast they have 5 yr. / 100,000 mi. powertrain warranty now. Seems like it would last 6 years...lol! What kind of gas milage do you get at hwy speeds? Replies to this message: shujat (May 27, 2007 5:50 pm)
#22 of 128 Re: 5 yr. / 100,000 mi [markisliev] by shujat May 27, 2007 (5:50 pm)
Replying to: markisliev (May 27, 2007 8:44 am) Hey Mark, Thanks! Well we went furniture shopping, and on the freeway it averages according to the trip computer 17-18mpg if youre going in the 55-65mph range. I usually leave the computer to miles to empty mode to see the difference and when I left the house it was 251 miles to empty, and after a day end it was 230 to empty. I am absolutely happy with it so far, and love the remote start feature, because it turns on the A/C by the time we walk to the truck its nice and cool on a hot day like today. I considered other brands, but I had GM supplier through my company and I couldnt pass it up. Oh and if it adds any brownie points, I got glaring head turns by people today. I have unfortunately not seen another Sierra Denali on the road. I hope they are popular over time. Thats my two cents.... Sammy
#23 of 128 Re: 2007 GMC Sierra Denali Full Test [1offroader] by davethecarnut May 27, 2007 (8:34 pm)
Replying to: 1offroader (May 18, 2007 6:30 am) Offroader, When doing acceleration tests, you ain't gonna see "final drive gear". In other words, the trans isn't gonna reach top gear by the end of the test Is that clear? Replies to this message: 1offroader (May 28, 2007 7:38 am) davethecarnut (May 28, 2007 8:39 pm)
#24 of 128 Re: 2007 GMC Sierra Denali Full Test [davethecarnut] by 1offroader May 28, 2007 (7:38 am)
Replying to: davethecarnut (May 27, 2007 8:34 pm) Dave Not clear at all. EACH gear has a final drive ratio, and the final drive ratio changes with each shift of the transmission. Final drive ratio is just what the rear wheels see at any particular point in time regardless of what gear the transmission is in. Examples: 1st gear start - let's say that first gear is 4.00, and the rear diff is 4.10. The final drive ratio is 4.0 x 4.1 = 16.4 4th gear at hwy. speed - let's say 4th gear (in a 4 sp. trans.) is 1.00 and the rear diff is 4.10. The final drive ratio in top gear is 1.0 x 4.1 = 4.1. (If top gear is overdrive, you would multiply by somewhat less than 1.0). You can do the same calc. for each gear in the trans. Just multiply it by the rear diff. for the final drive ratio in the gear. If you have a 4x4, you would need to also multiply by the gear ratio in the transfer case. Most t-cases have a 'hi' gear of 1.0, and a 'lo' somewhere in the 2.0-2.5 range. So, in first gear and 4-lo, the formula for final drive ratio might look like this: 4.0 x 2.0 x 4.10 = 32.8 That's why 4x4 is so powerful - the extra gear reduction of the t-case makes a big difference. Are we clear on that? And that's your automotive lesson on final drive ratio for the day. I accept VISA, MasterCard, and cash. No personal checks, please. 1offroader Replies to this message: davethecarnut (May 28, 2007 8:39 pm)
#25 of 128 lower 1st gear.... by markisliev May 28, 2007 (8:26 am)
So what that means is that the Denali has a slightly more agressive 1st gear than the Tunda if the Yota comes with a 4.10 rear right? Hey, anyone know where we could find complete 6L80E specs to compare every gear? Tundra 1st gear 3.33 x 4.10 rear axle ratio = 13.65 Denali 1st gear 4.03 x 3.42 rear axle ratio = 13.78 * I pulled the gearing info from the following article... http://www.pickuptruck.com/html/2007/gmc/sierra/roadtest/page2.html "The Denali’s final drive ratio is a stocky 3.42:1, to help push up its CAFE scores, but the 6L80E’s broad range compensates by using an extremely low 4.03 first gear and VVT to ensure quick starts off the line. The tested Tundra had a much lower 4.1 rear axle ratio, as it was optionally equipped with a trailering package to tow a hefty 10,400-lbs - 1,700-lbs more than the Denali - and it used a 3.33 first gear for launch. One final consideration, the Denali ran the track shod with 20-inch chromed dubs while the Edmunds Tundra used 18-inch wheels." Replies to this message: 1offroader (May 28, 2007 11:14 am)
#26 of 128 Re: lower 1st gear.... [markisliev] by 1offroader May 28, 2007 (11:14 am)
Replying to: markisliev (May 28, 2007 8:26 am) markisliev, that's right. The final drive ratio for first gear is slightly lower, or more aggressive, in the denali. HOWEVER, if I didn't confuse you enough, the wheel size can make a big difference. The larger the radius, the higher, or taller, the final ratio. The fact that the denali had 20" wheels vs. the 18" tundra does not tell the whole story. It's the overall radius that counts and since the 20" tend to have lower profile tires the overall radius may be about the same as the tundra 18". For example, when guys go from normal tires to big off road tires, they often have to gear back down to compensate for the much larger radius. For example, if they had 4.10 rear end they might have to switch to a 4.56 when they install the big tires. Otherwise, performance gets sluggish. And, on a 4x4, you also have to switch the front end gears too. This can get expensive. 1offroader
#27 of 128 denali is better by markisliev May 28, 2007 (4:38 pm)
The Denali is probably a good bit faster than what edmunds found IMO...They must not have a graceful foot... A 400lb heavier GMC Yukon (same motor) with 20 less hp managed a 6.2 sec 0-60 and still trapped at 94mph....better than the tundra, just like pickuptruck.com found with the AWD Denali... http://www.caranddriver.com/shortroadtests/10771/short-take-review-2007-gmc-yukon-denali-2007-gmc-yukon-denali-specifications-page2.html The 200lb lighter 2wd Sierra Denali will probably whoop some a$$ with a good driver.... I prefer pickuptruck.com's review of the AWD version, the trap speed and 0-60 seem to match what car and driver found with the heavier yukon... http://www.pickuptruck.com/html/2007/gmc/sierra/roadtest/page1.html