SL55/63/65/R230 AMG: SL 63 claims 4.2 0-60 on MB site
I actuall bought a SL63 yesterday and ran it against my E63 which is a 4.3 car and believe me the 4.2 that Mercedes is claiming is on the money.
Out of three runs the SL beat the E slightly and one run the Sl got a bad start but hung at the E's rear doors.
Overall I am very impressed with the Sl63, I have owned an SL55 and a SL600 and several older SL's.
Last edited by smess; May 4, 2008 at 08:15 PM.
I actuall bought a SL63 yesterday and ran it against my E63 which is a 4.3 car and believe me the 4.2 that Mercedes is claiming is on the money.
Out of three runs the SL beat the E slightly and one run the Sl got a bad start but hung at the E's rear doors.
Overall I am very impressed with the Sl63, I have owned an SL55 and a SL600 and several older SL's.
So you have an E63 an CL 63 and now an SL 63?
I thought it would be a great improvement over the previous model.
I will not go near a dealer for fear I make a huge mistake
I actuall bought a SL63 yesterday and ran it against my E63 which is a 4.3 car and believe me the 4.2 that Mercedes is claiming is on the money.
Out of three runs the SL beat the E slightly and one run the Sl got a bad start but hung at the E's rear doors.
Overall I am very impressed with the Sl63, I have owned an SL55 and a SL600 and several older SL's.
4.2 was (and I suppose, is) the claimed time for the SL65.
The 55 vs 63 debate lives on but seems the SL version has many improvements over the E63 and CLS 63.
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According to that, the SL63 features a 6.0L V12-engine..

They mixed up the numbers. Here's the correct info (page 9 of 12):
http://www.mbusa.com/media/downloads...re/slclass.pdf
Last edited by FloridaE55; May 4, 2008 at 10:55 PM.
Very true........but.
This is like the gas tax holiday. Very good idea in theory but in practice, not useful since none of the candidates proposing will actually be in office this summer to sign it into law. Only George Bush can, and he hasn't said anything about it.
......When buying one of these cars, you are not allowed to test drive them. You buy them sight unseen. You rely solely on second hand information which are all subjective. The only objective info car makers release are stuff like 0-60 time, weight, gas mileage. The 0-60 time I agree is imperfect. What is the buyer to do? If you demand an SL63 for a test drive, your local dealer will chase you out of the building unless you agree to buy them of them from him/her. If your argument is that car manufacturesrs should release more objective data for performance cars, I agree with you totally. If you argument is that folks should ignore the little objective performance data there is, then I don't agree. So your point is diluted by the fact that MB does not have, lap times, braking distance, skidpad, lane change mph etc on their website. Instead they have.........yep, 0-60 time.
Ted
Last edited by Ted Baldwin; May 5, 2008 at 09:54 AM.
0-60 (0-100 kph for Europe) has for the past 70+years been the main benchmark for judging how fast a car or motorcyle accelerates.
This is the easiest test to do because it can be done just about anywhere( only a short strech of straight road and a watch) and can be done by anyone. But this is just one of many performance tests (0-100, 100-0 ,skid path, salom, road course, drag strip etc).
Obviously my 71 Cuda would be faster then my 72 911S at the drag strip but not at Willow Spings. But most people think of the Cuda as the faster of the two cars because it accelates faster to 60 after 80 the Porsche starts pulling harder ( comes on the Cams)and catches and passes the Cuda.
Last edited by EXECMALIBU; May 5, 2008 at 10:12 AM.
This is like the gas tax holiday. Very good idea in theory but in practice, not useful since none of the candidates proposing will actually be in office this summer to sign it into law. Only George Bush can, and he hasn't said anything about it.
......When buying one of these cars, you are not allowed to test drive them. You buy them sight unseen. You rely solely on second hand information which are all subjective. The only objective info car makers release are stuff like 0-60 time, weight, gas mileage. The 0-60 time I agree is imperfect. What is the buyer to do? If you demand an SL63 for a test drive, your local dealer will chase you out of the building unless you agree to buy them of them from him/her. If your argument is that car manufacturesrs should release more objective data for performance cars, I agree with you totally. If you argument is that folks should ignore the little objective performance data there is, then I don't agree. So your point is diluted by the fact that MB does not have, lap times, braking distance, skidpad, lane change mph etc on their website. Instead they have.........yep, 0-60 time.
Ted
A front-engined, RWD car on street tires is traction limited to a low 4-second range regardless of whether it has a million hp or 400hp. The only way it is possible for a road car on street tires to achieve a sub 4-second 0-60 is if its either AWD or mid/rear engined layout. For instance, look at the "Speed Kings" article from R&T (http://www.roadandtrack.com/assets/d...0_Data.pdf.pdf) As you can see, a 1000hp twin-turbo Viper achieved a 0-60 in 4.3 seconds. Without knowing anything else, one would conclude that a 1000hp Viper is as fast as 360hp SLK55 AMG or 190hp Lotus Elise (which also achieve 0-60 in 4.3 seconds in C&D tests) and that 810hp extra don't give you additional performance
. On the other hand, if you look at 1/4 mile times, you will see that the twin-turbo Viper does 11.7 @ 146mph, while SLK55 only manages 12.8 @ 110mph. Here you can clearly that although Viper and SLK55 have identical 0-60's, the Viper is a whopping 36mph faster through the 1/4 mile. So again, my proposal for car manufacturers is to switch to 1/4 mile as an acceleration benchmark. It would be an easy switch IMO, since many of them do report 1/4 mile times already.
Last edited by Tuskir; May 5, 2008 at 04:27 PM.
Last edited by FloridaE55; May 5, 2008 at 06:02 PM.
A front-engined, RWD car on street tires is traction limited to a low 4-second range regardless of whether it has a million hp or 400hp. The only way it is possible for a road car on street tires to achieve a sub 4-second 0-60 is if its either AWD or mid/rear engined layout. For instance, look at the "Speed Kings" article from R&T (http://www.roadandtrack.com/assets/d...0_Data.pdf.pdf) As you can see, a 1000hp twin-turbo Viper achieved a 0-60 in 4.3 seconds. Without knowing anything else, one would conclude that a 1000hp Viper is as fast as 360hp SLK55 AMG or 190hp Lotus Elise (which also achieve 0-60 in 4.3 seconds in C&D tests) and that 810hp extra don't give you additional performance
..
SL65 owners can say what they want, but unless they put some drag radials on their car, their 65 is no faster than any other AMG to 60. SL63 is actually likely to be faster in the real world than SL65 to 60 because it will be able to put the power down more effectively. When the SL65 does hook up (somewhere in 3rd gear probably lol!), 63's and 55's are pretty much toast
The trap speed is amazing but the ET not so good for 1000hp.
Last edited by juicee63; May 7, 2008 at 12:32 AM.






