SL/R230: Smoothness of ride/refinement SL500 vs SL55 and older cars vs newer cars in general
I'm pretty close to taking the plunge on an R230 and had a question that I was wondering if the good folks of this board can help me out with.
The long story short: how should I expect a 2005ish car with 50,000 - 60,000 miles on it to 'feel' if properly maintained?
The reason that I ask is that I recently drove a 2005 SL55 with 40k miles and a 2017 Mustang GT back-to-back. Much to my surprise, I found the Mustang to be the more compliant ride, and it generally felt more refined.
I know that age -- even (and sometimes especially) on cars with very low mileage -- can take a toll on its own due to degradation of rubber bushings, etc. And I have reason to believe that the SL55 I drove needed new engine mounts.
The question: should I generally expect these cars to be less refined than they once were, even if properly maintained, as an inevitable consequence of time? What does a 15-year-old (or older!) car 'feel' like if properly maintained? Is there a meaningful difference in this regard between the AMG model and the 'standard' 500? Or was I just exposed to a bad example?
Long story short, a well-cared-for R230 with a healthy ABC system and other suspension/steering components + mounts should feel essentially like a new car, right?
Thanks!
(I probably already know the answer to this question ["It depends!"] as my 165k mile E90 handles bumps better than the 30k mile 2010 XKR I drove yesterday, but that might have something to do with the Jag's 20" wheels...)
Last edited by 850csi; Apr 3, 2019 at 12:40 AM.
In my 55 daily driving and long trips the ride is almost pillow smooth, especially after having my engine mounts replaced. If you found the SL55 ride harsh or less compliant, my guess is either you were driving on the lowest setting along with the car being lowered, or the engine and transmission mounts could have been shot. Also, wheel size makes a huge difference. Stock wheel size is 18". A lot of people go bigger to better fill the wheel wells. 19" are ok, but 20" wheels get too firm and let too much road feedback come in.
What I found in my test drive is the 500 feels big and cumbersome. You really feel the weight. The 55 felt tighter and with the additional power overcame the weight factor.
One thing I have noticed about ABC int he SL is how well it can absorb odd road imperfections. For example, a road I travel quite often has one of those sunken spots. It's not a pothole, but a smooth dip, but will cause most cars to undulate and waddle through it. The SL just plows straight through and you almost can't tell it's there. A Mustang would probably send me to the chiropractor. Oh, and I once drove a G500 (G-wagon) through there and it activated ESP and skidded (this is at 35mph). I love what ABC does. It doesn't make the SL a track car, but it's comfortable for daily cruising and offers a bit of fun in the curves (given the limitations of the tires).




In my 55 daily driving and long trips the ride is almost pillow smooth, especially after having my engine mounts replaced. If you found the SL55 ride harsh or less compliant, my guess is either you were driving on the lowest setting along with the car being lowered, or the engine and transmission mounts could have been shot. Also, wheel size makes a huge difference. Stock wheel size is 18". A lot of people go bigger to better fill the wheel wells. 19" are ok, but 20" wheels get too firm and let too much road feedback come in.
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^^^Agree with this.
If the tires are 19, or bigger, it will suffer.
If the suspension is lowered, drive it all the way up (2 little red lights on).




