What is the highest speed you have driven in your SLK with the Top Down? - Mercedes Benz SLK Forum

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#1 Old 05-27-2019
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What is the highest speed you have driven in your SLK with the Top Down?

I am not asking for anybody to admit to exceeding the speed limit on a public road. What I am trying to find out is if the car is capable of being driven safely with the top down at 155mph which my car and most SLK's are electronically limited to (eg. on the Autobahn, Airfield Runway ,Track , Private Road) and what are the issues?
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#2 Old 05-27-2019
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I did 180 but with top up....sorry Martin...Just like to gloat
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#3 Old 05-27-2019
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I've only done 125, top up...90 top down on I95 in Florida and that was brutal...pulled into a rest area and put the top up...it was just too much after an hour or so...

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#4 Old 05-27-2019
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In our R230 SL350 long distance cruising at 110mph top down on the Autobahn was relaxed and comfy.....
Maybe thatís the difference between an SL and an SLK?
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#5 Old 05-27-2019
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120 with the top up and about 95 top down.

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#6 Old 05-27-2019
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Iím not sure what speed we hit at Rockingham ... but is sure was fast and we all had the tops down

On the continent Iíve been well over the ton (with windows up and OEM wind-stop in place) and it was very smooth. Itís never been the car that stops me going faster ... itís my self preservation switch
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#7 Old 05-27-2019
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Quote:
Originally Posted by TonyS3 View Post
In our R230 SL350 110mph top down on the Autobahn was relaxed and comfy.....

Maybe thatís the difference between an SL and an SLK?

TonyS
That's the difference? That and about $35K...

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#8 Old 05-27-2019
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Originally Posted by Johnkat View Post
That's the difference? That and about $35K...

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Hey John
Itís a 2003 car with 88K miles, worth about £9K at U.K. prices currently.....bit of a bargain, maybe you should test drive one?
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Somewhere in my memory......top down, wind restrictor into place....120 comes to mind.....comfy.
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#10 Old 05-27-2019
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One problem of going over 130mph, top down is not so easy to here one's music....!!
Quote:
Originally Posted by jbanks15 View Post
I did 180 but with top up....sorry Martin...Just like to gloat
Need proof, or don't count....!!!
(But only advisable for Germany, or off road speed runs)

Here is a tad under 130mph, top down while returning through Germany.. >R
YouTube: https://youtu.be/7-YUgsc6e4c
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#11 Old 05-27-2019
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Originally Posted by TonyS3 View Post
Hey John

Itís a 2003 car with 88K miles, worth about £9K at U.K. prices currently.....bit of a bargain, maybe you should test drive one?

TonyS
We have a very small garage, hence the 2012 SLK, WE ALSO HAD A 2010 Jag XF but it was always nerve tweaking to park it next to the Merc with only a couple of inches clearance...so traded it in on a silver with cranberry interior 2018 C300...now they both fit well...no changes planned...

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#12 Old 05-27-2019
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Originally Posted by MartinatMersea View Post
I am not asking for anybody to admit to exceeding the speed limit on a public road. What I am trying to find out is if the car is capable of being driven safely with the top down at 155mph which my car and most SLK's are electronically limited to (eg. on the Autobahn, Airfield Runway ,Track , Private Road) and what are the issues?
Yes, and FWIW, much more stable top up or down at those sorts of speeds than my beloved 928S4. That certainly got a bit light at the front end at 1xxmph. What are you planning Martin? Last time I went past you on the M25 you were being extremely responsible at perhaps 77mph. Going abroad??
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Quote:
Originally Posted by Trev5 View Post
One problem of going over 130mph, top down is not so easy to here one's music....!!

Need proof, or don't count....!!!
(But only advisable for Germany, or off road speed runs)

Here is a tad under 130mph, top down while returning through Germany.. >R
YouTube: https://youtu.be/7-YUgsc6e4c
That was before my dash cam but here is authoritative proof from State of Florida of my exceeding the speed limit
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#14 Old 05-27-2019
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i have been at 135 top down on a private road and itís still very comfortable with little buffeting.
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#15 Old 05-27-2019
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Just about every car I have ever owned I had maxed out at one time, or another. Many years ago "we" got onto the M42 (before it opened - not even the lane markings in place) and blasted up and down and had a wonderful time. There's an airfield not too far from me that owes me some tyres as well.

Now days its somewhat different, I've my favorite bits of road and when conditions permit I have a little fun but generally not for long. I may make faster progress than average but I like to keep my distance, I don't like company on the road. So top down not so fast, primary reason that would be on A-road not motorway, (no motorways in Cornwall you know) and top up, well lets just say I haven't maxed it out, not even close - and don't really feel the need to. I didn't really buy the car for its top speed, but more for its acceleration and handling.

On the subject of going fast. I used to travel up the Country to my parents on Christmas Eve (it just worked out like that). Now I wasn't hanging about, but my God cars would come past me at some speed. These were the days of XJ12's and XJS's, the odd Porsch and the big Merc's of course. The big saloons would kind of float at the rear, going far to fast for their soft suspension (probably around 150mph). You would see a wisp of blue from the exhaust as well, in the few seconds you had before they disappeared into the distance.

These day I wonder if you drove like that how many speeding tickets you could pick up between here and the Midlands - times have changed :-)
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#16 Old 05-27-2019
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Originally Posted by RobinRidge View Post
Just about every car I have ever owned I had maxed out at one time, or another. Many years ago "we" got onto the M42 (before it opened - not even the lane markings in place) and blasted up and down and had a wonderful time. There's an airfield not too far from me that owes me some tyres as well.

Now days its somewhat different, I've my favorite bits of road and when conditions permit I have a little fun but generally not for long. I may make faster progress than average but I like to keep my distance, I don't like company on the road. So top down not so fast, primary reason that would be on A-road not motorway, (no motorways in Cornwall you know) and top up, well lets just say I haven't maxed it out, not even close - and don't really feel the need to. I didn't really buy the car for its top speed, but more for its acceleration and handling.

On the subject of going fast. I used to travel up the Country to my parents on Christmas Eve (it just worked out like that). Now I wasn't hanging about, but my God cars would come past me at some speed. These were the days of XJ12's and XJS's, the odd Porsch and the big Merc's of course. The big saloons would kind of float at the rear, going far to fast for their soft suspension (probably around 150mph). You would see a wisp of blue from the exhaust as well, in the few seconds you had before they disappeared into the distance.

These day I wonder if you drove like that how many speeding tickets you could pick up between here and the Midlands - times have changed :-)
but you did not answer his question how fast with top down in slk
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#17 Old 05-27-2019
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Got in a good-natured race with a Z4 somewhere in Europe where speeding is definitely frowned upon, we were going at 115-120 top-down on a nice day with light tailwind. It's never going to be as isolated as a bigger GT car (R230 and R321 SLs are much more civilised if you just want to waft along) but you can cruise at 70-80ish all day with the roof down, weather permitting. One thing I notice is the OEM perspex wind deflector tends to shake quite a bit above about 90mph- not sure what it's rated at but you might want to change out for the fabric version if you wanna hit V-max
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#18 Old 05-27-2019
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Iíve ran mine up to the limiter a couple of times both times with the roof in the boot. Needle actually stopped at 160. Car still felt very well planted, plenty of wind noise though.


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Quote:
Originally Posted by cmowforth View Post
One thing I notice is the OEM perspex wind deflector tends to shake quite a bit above about 90mph- not sure what it's rated at but you might want to change out for the fabric version if you wanna hit V-max
Well, when We visited the Porsche factory a few years back, they said that there cars where designed to be driven flat out across Germany (so 155mph) with out problems....

So guess SLK's would have the same design brief - Including the OEM Wind Deflector....? No where in the manual have I read not to drive top down above a certain value...??
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Iíd be interested to find out. Havenít had a speed run with my new one yet but hit 120 and a bit in the 230 still with plenty of give on the accelerator - it wasnít the kind of day for top down and the road felt a little uneasy so I left off it a bit.

Autobahn is calling. 😊
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