SLK55_AMG

congratualitions SLK 350!

http://germancarfans.zeroforum.com/zerothread?id=9013

SLK55AMG

Good to see that it won overall but a little concerning that it was slowest round the track? Probably the extra weight and effect of the traction control?

theitalianjob

Thanks for sharing the article.

SLK

slytoksy

Lets not forget that the SLK 350 was equipped with a manual tranny, the DSG and SMG trannies shift much faster and are better suited for track use - I believe the SLK 350 would have had better lap times if it came with 7G-Tronic due to its performance advantage(3.6 secs faster than the manual transmission from 60-120km/hr)

SLK55AMG

I'm not sure that the 3.6 second advantage with the 7G is a fair comparison to the manual box...... there seems to be some concern that the comparison was between the Auto in kickdown and the manual in top gear...... thats obviously not a fair comparison as the manual would perform much better if in the "correct" gear.

See the related thread:

https://mbworld.org/forums/showthrea...threadid=69199

If the car in this test was the manual (I couldn't see anything that said it was the manual by the way) it had a 60-120kph time of around 5 seconds (if you check the performance data in the test the SLK did 60-100 in 3 sec and 80-120 in 3.7 so 60-120 would be around the 5 second mark)...... the MB press release said the manual did 60-120 in 8.7 seconds so the data here would suggest that the test car in the article was actually the 7G.

If the test car WAS the manual and we believe that the 7G is 3.5 seconds quicker that would mean that the 60-120kph dash would only take 1.5 seconds...... the numbers just don't add up so something is wrong somewhere!

slytoksy

The SLK 350 in the test came with a manual, sechgang manual(six-speed manual):






You do have a point though, the test times show that the manual is as fast as the 7G's quoted times but the article clearly states that the test car has a manual tranny(BTW I scanned the article
). The 60-120km/hr times might be be a meaningless comparison but I don't think MB would release such times unless they had to prove that the auto offers better performance than the manual(even if its not as much as 3.6secs).

This is a quote from the official press release:

The SLK 350 can be ordered as an option with the world’s first seven-speed auto-matic transmission (fitted as standard in the SLK 55 AMG). The 7G-TRONIC automatic transmission is brimming with technical innovations which ensure more powerful acceleration, extra-fast mid-range sprints, lower fuel consumption and a higher level of shift comfort. In other words, the new V6 engine and the 7G-TRONIC transmission make the perfect couple when linked together in a Mercedes sports car






I'm confused

SLK55AMG

I think the figures basically confirm that the MB press release figures are comparing the 7G to the manual acceleration time while in top gear (6th)..... 8.7 seconds from 60-120kph sounds about right in top gear and the test article shows that the time is much closer to the 7G when in the correct gear (the manual would start in 2nd and have to change up to 3rd so 5-6 seconds sounds more realistic)...... so the difference between 7G and a properly driven manual should be less than the press release suggests!

dubenz

Gosh...this is where that high school German could have come in handy!

SLK55_AMG

Congratulations!

Jon200

Go the SLK, you can tell the better looking car when they are all lined up

SLK55_AMG

looking SLK!