Mercedes-Benz (R107) 500SL vs (R231) SL500: Classic Comparison
Considering the 30-year gap between them, is the genteel R107-series Mercedes-Benz 500SL any match for the brawny and tech-laden R231-series SL500?
As the engine configuration immortalised by the US muscle-car era, the V8, such as those that power the Mercedes-Benz 500SL and SL500 featured in this classic comparison, was destined to become quite a few car manufacturers’ engine of choice for large vehicles, especially luxurious ones, and sportscars.
IMAGES: Charles Russell
Before the age of downsizing, some consumers considered 6-cylinder motors too small for performance cars, high-revving V10s were reserved for exotica and buttery smooth (but also complicated and thirsty) V12s were predominantly made for those wealthy clients who simply wouldn’t settle for anything less.
So, the V8 represented a happy medium of all the engine configurations, but this wasn’t always the case.
Looking back at its history, the V8 had a rather haphazard birth. Between its implementation in boats and aeroplanes, automotive manufacturers were slow in applying this engine blueprint to their cars.
Mercedes-Benz waited until 1964 to launch its first V8 powerplant in a passenger car, called the 600 Grosser; it set the scene for ‘Benz’s trio of muscular V8 saloons: 280SEL 4.5, 300SEL 6.3 & 450SEL 6.9.
See also: Mercedes-Benz 300SEL 6.3 vs E63 AMG (W212): Classic Comparison
Be it in naturally aspirated form, supercharged, or turbocharged, the V8 has been a pivotal powerplant for the Three-pointed Star. Over the past few decades, V8-engined variants of modern-classic ‘Benz models have drawn keen interest from collectors, especially those who are fans of the iconic SL roadster.
That said, the early generations of this model came with no more than 6 cylinders under the bonnet (in fact, the 190SL that was sold alongside the 300SL Roadster used a 4-cylinder powerplant).
Watch: 1959 Mercedes-Benz 190SL: SentiMETAL Episode 6
Also read: Mercedes-Benz 300SL Roadster: Classic Drive
In fact, the V8 would not play a part in the SL’s history until 1971, when it was slotted into the R107-series 350SL. See also: Mercedes-Benz 350SL vs 450SLC: Classic Comparison. Today, the values of prime R107-series 500SLs have crept close to the asking prices of high-mileage used R231-series SLs.
Surely a car that peaked in the ’80s can’t hold a candle to a model that was launched in the 2010s? Well, perhaps it can; to find out, we spent an afternoon with the Mercedes-Benz 500SL and SL500 drop-tops.
What Mercedes-Benz 500SL & SL500 have in common
Six decades of research and development are immediately evident in the design of these 2 Mercedes-Benz SLs, with the technology on show in the later model being particularly eye-catching.
The R231-series SL500’s headlight clusters hold not only bi-xenon headlamps but also LED DRLs. These clusters force you to look at them, even study them, to fully understand how they function.
Open the bonnets and you realise how far things have progressed over 3 decades. There is a lot of space in the R107’s engine bay, while the newer R231’s bay has barely enough room for a technician’s hand.
There is, however, 1 common theme – in their cabins. The Sindelfingen-based brand tried to introduce more “tradition” in the R231-series SL… As in its R107-series counterpart, there are circular vents in the centre of the SL500’s fascia, but with a more modern, 4-spoke design, which is a classy touch.
This is the only interior similarity, though. Silver detailing abounds in the R231, and its transmission lever is far shorter than the R107’s, with the stubby shifter surrounded by buttons for the Active Body Control suspension and 7-speed auto transmission. The buttons themselves are flush and fall perfectly in line.
Elegant simplicity at the heart of the R107-series SL
In the older Mercedes-Benz 500SL, it is even easier to understand the cabin’s controls. In the ’80s, soft-touch materials weren’t as high on carmakers’ agendas as today. This means the dash, fascia and all their surrounding controls are chunky but durable – they feel substantial when you operate them.
The R107-series roadster’s driving position feels a little odd, though. It’s as if you sit on, rather than in, the seat and reach out to twirl the large tiller sits close to the dash by modern standards. In the R231-series SL500, the driver’s seat is positioned much lower; you feel more ensconced behind the helm.
Specifications:
- Model: Mercedes-Benz (R107) 500SL
- Years produced: 1980-1989
- Engine: M117 5.0-litre V8, petrol
- Power: 170 kW at 4 750 rpm
- Torque: 404 Nm at 3 000rpm
- Transmission: 4-speed auto, RWD
- Weight: 1 540 kg
- 0-100 kph: 8.1 sec (claimed)
- Top speed: 220 kph (claimed)
The SL500’s seats offer incredible support and are more comfortable despite a firmer feel than those in the 500SL, which have a springiness that exacerbates road imperfections, such as bumps and dips.
When you peer into your side mirror, the simple, restrained horizontal planes of the R107-series’ sheet metal contrast starkly with the R231-series’ curvy bodywork. The more youthful SL500 has a wide and high rump, while the SL500 features a sleeker and more compact rear end that slopes away slightly.
This is a clear indication of how cars have grown and evolved during the past few decades. I think the SL500’s red leather interior is far more contemporary and inviting than the beige-coloured cabin of its forebear. The greatest contrast of all, however, becomes apparent when the roadsters corner.
The more modern SL’s biturbo 4.7-litre V8 feels almost as powerful as the 5.5-litre biturbo V8 in this generation model’s Mercedes-AMG SL63. Not only is turbo lag minimal, but the engine revs with gusto.
Although the R231-series Mercedes-Benz roadster-cum-coupe is more grand tourer than sportscar, once you drive up/down a mountain pass, the 6th-gen SL500 will surprise you. It gives its driver more feedback than other cars of this type, while the lightweight aluminium body shell facilitates its agility.
Specifications:
- Model: Mercedes-Benz (R231) SL500
- Years produced: 2012-2020
- Engine: M278 4.7-litre V8 biturbo, petrol
- Power: 320 kW at 5 250 rpm
- Torque: 700 Nm from 1 800 to 3 500 rpm
- Transmission: 7-speed auto, RWD
- Weight: 1 785 kg
- 0-100 kph: 4.6 sec (claimed)
- Top speed: 250 kph (limited)
You are constantly aware of the newer SL’s size, though. Parking and navigating tight roads require a higher level of concentration than in the 500SL, which feels at its most comfortable when cruising.
The latter car’s in-gear performance can be maximised by using the automatic’s kick-down feature, but the result is always languid progress. The vague steering is actually quite suitable for the mood this car inspires in its driver. Sit back while cruising on an open road, and you can’t help but think back to scenes in the original TV series Dallas in which the Bobby Ewing character enjoyed driving an R107-series SL.
To drop the hardtop of the R231-series SL500, you simply have to press a button. But, if you know what you are doing (and have a helping pair of hands), the R107-series 500SL’s fabric roof can be lowered in roughly the same time (it also came with a removable hard top, but fitting/removing that takes a while).
It is easy to understand why so many considered the Mercedes-Benz SL the ideal roadster for taking a scenic cruise in the 1980s. Until 1985, when the 560SL came along, the 500SL was the most powerful SL in the range. Several generations later and, on paper at least, that is not the case any more.
With its twin-turbo V12, the R231-series Mercedes-AMG SL65 borders on being a supercar, but its useable, on-road performance isn’t dramatically better than that of its SL500 sibling. Compare asking prices of standard and AMG-fettled R231s – you’ll notice there are huge differences between them.
See also: Mercedes-AMG (R231) SL65: Classic Drive
Verdict
Four generations represent a galactic leap in the motor industry, especially if you consider the pace of development and the fact that the R107 had the longest production run of any SL (more than 18 years).
In R231 guise, the Mercedes-Benz SL is a much more serious sports car, with turbocharging part and parcel of the range. These forced-induction, large-displacement engines add to the car’s epically comfortable and tranquil manner, and make the SL even more capable over long distances.
In many ways, the R231-series Mercedes-Benz SL500 is simply in a different league to the relaxing R107-series 500SL, because it is almost a different type of car, a GT with true sportscar ingredients.
The Mercedes-Benz SL has come a long way since the R107-series 500SL, but there is still much to like and admire about its old-school charm. It’s become a collectable classic, after all, and with good reason.
Sometimes, a relaxing drive with an old–school V8 purring away out front is all that you really want…
Search for a new/used Mercedes-Benz SL listed on Cars.co.za
Search for a new/used Mercedes-AMG SL listed on Cars.co.za
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