R171 slk55 and r172 slk55 - Mercedes Benz SLK Forum

AMGs For those high performance Mercedes-Benz R170-SLK 32/R171-SLK 55/R172-SLK 55 cars tuned by AMG -

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#1 Old 05-05-2013
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R171 slk55 and r172 slk55

Im thinkin of trading in my slk and move onto amg

But i cant decide between those 2

If i were to get r172, i will prob lease it

I test drove r171 slk55 and the power and torque is just amazing

Does r172 shows significant power and torque difference compare to r171?

What other traits are added onto r172? Better handling? Faster 0-60?

I couldnt test drive r172, so i really cant tell

Please let me know! Thank you!
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#2 Old 05-05-2013
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Well speaking from one that has a r171 slk 55 amg with that world famous F1 nose, ahem, go with the R171!!
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#3 Old 05-05-2013
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Easy for me as well - R171 ;-)



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#4 Old 05-05-2013
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Yea i love the r171 too!

But doesnt it feel like driving a same car when u trade from slk350?

At least r172 has new interior.

However, any of u guys test drove r172 slk55? Did u guys feel the power difference?
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#5 Old 05-05-2013
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i didn't but when they say u have 4 cylinders and 4 more on demand, i say i want 8 and i want em all now!!!
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#6 Old 05-05-2013
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i didn't but when they say u have 4 cylinders and 4 more on demand, i say i want 8 and i want em all now!!!
so you press the C-S-M switch - problem solved

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#7 Old 05-05-2013
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takes at least 3 seconds to push that button!! who has that kind of time!
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#8 Old 05-05-2013
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I've owned both and the r172 is better in every way. The external looks are subjective, but the interior quality is miles ahead as well as the technology. The new engine is more powerful and responsive. It rides a lot better and handles better. If you can get the r172, get it.
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#9 Old 05-05-2013
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takes at least 3 seconds to push that button!! who has that kind of time!
dunno - 3 seconds for 60hp seems a fair trade...

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#10 Old 05-05-2013
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The problem is, there is only 1 slk 55 r172 availble near me and it is mars red...

It takes 6-8 month to order one, and aint nobody got time for that! Haha
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#11 Old 05-05-2013
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no brainer really, interior is lightyears ahead imo, and personally i much prefer the more manly look of the 172.

As for the cylinder shutoff, you don't have to use it, theres no button to give the extra hp or a button to give you all 8 cylinders, if you want it to, it will always have 8 cylinders, just turn the eco button off and then it will stay off.

I like being able to obtain 30+ mpg though, other AMG owners dream of that sort of figure.

oh yeah and did i mention it having 420 hp, the first number being the magic one, and the torque is enough to stop the earth spinning for a second.

Anyway, I'm biased as i own a 172, but it was only when they bought the 172 out that i could bring myself to look at the SLK, before then i just couldn't.

I guess the best advice is from the guy above who's owned both really.
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#12 Old 05-06-2013
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Originally Posted by razr-01 View Post
The problem is, there is only 1 slk 55 r172 availble near me and it is mars red...

It takes 6-8 month to order one, and aint nobody got time for that! Haha
Your dealer can have one brought in from anywhere.
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#13 Old 05-06-2013
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Without a doubt, I would go for the R172. Although I dislike the look (nose, headlights, and rear fenders) on the R172, it is mechanically superior, stock vs. stock. With modern MBs, newer is almost always better.


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#14 Old 05-06-2013
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Originally Posted by razr-01 View Post
The problem is, there is only 1 slk 55 r172 availble near me and it is mars red...

It takes 6-8 month to order one, and aint nobody got time for that! Haha
the slk in red has really grown on me after seeing people post their pics on this site
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#15 Old 05-06-2013
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The R172 doesn't do it for me. I'll keep the R171 '55.

Everyone says it has 60 more horsepower... sure, but it's also 150lbs heavier, and bigger. 3 inches longer and 9 inches wider. It also takes longer to stop. Car and Driver's tests have it at only 0.2 seconds quicker to 60 and the quarter mile. That speed difference is NOT significant nor noticeable. What WOULD be noticeable however, is 150lbs of extra weight when cornering.

Interior, the 172 is gorgeous, I'll give it that. Exterior though, the 171 is much better. The 172's proportions just look odd... just like the new SL.

Really want the extra HP? Get a used R171 and add Kleemann headers and delete secondary cats along with a custom dyno tune from Eurocharged for under $2000. There's your immediate throttle response, extra horsepower, and 0.2 seconds right there. You'd also lose a good 30-50 or so lbs from the exhaust work.

It just looks big.
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#16 Old 05-06-2013
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I'm not a big R172 fan from the looks....just like the F1 styling.

HP is HP, speed laws take care of that...so you can get to 70 in 0.2 seconds faster with a R172? Not sure that's important....but in my book the value of the car does (resale, etc).

You say you would lease a R172....I assume you would buy a R171. Presto, there's you're answer! Value in a leased car only says you will have to purchase or lease another car in 36 months? If you purchase your lease, you basically have paid at least 10% over the MSRP when you buy it...so if you can't afford to buy the R172 now, can you in 36 months? If you buy the R171 (an pay it off) you OWN it....it has value!

Viola!

Buying a car to most is an emotional experience....it should be a financial transaction where you try and keep your money and the seller tries to get your money. With a lease you have zero chance! In fact if you lease and lease and lease consider yourself a slave as you will never get out of owing money to the bank!

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#17 Old 05-06-2013
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I like the R171 baby Maclaren F1 look. R172 is mechanically superior to R171 I supposed. For me the SLK serves as a weekend fun ride and I cannot spend the R172 money on it.
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#18 Old 05-06-2013
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You got to pick the R172. It better in every way in my opinions.
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#19 Old 05-06-2013
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Your dealer can have one brought in from anywhere.
correctomundo James...I got mine from Virginia after a a search on the dealers website-got it in a week!! R172 all the way!!!


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#20 Old 05-06-2013
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I don't have an AMG, but I seriously compared the R171 over the R172 before purchasing my current SLK. Aesthetically, I found the R171 more to my liking hands down. The R172 has a more American/domestic look to it, which I find boring. I don't get the whole argument that the R172 looks manlier when compared to the R171. I find the argument more annoying than anything else. It's all about personal preference, but to me my Black Beauty is one sexy beast and I'd take the R171 over the R172 any day!
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