Tuner Tuesday: 1994 Mercedes-Benz SL70 Renntech

If some is good, more is better. A lot of times that is true, sometimes it is not. Thankfully, that saying applies when talking about V12 Mercedes-Benz. One of the most common modifications to the M120 V12 is taking that 6.0 liter and increasing the displacement to a 7.0, 7.2, 7.3 or even crazier 7.4. AMG was known to do this in small batches as well as other aftermarket tuners. One of those aftermarket tuners was Renntech. They would pump these up to 7.0 liters as well as modify other things like camshafts and surrounding parts. The result was somewhere over 500 horsepower and a price tag to make anyone do a double take. Today, we have a one of those 7.0 liter conversions up for sale in Kentucky in this 1994 SL. Even better, there are some AMG goodies on this car as well.

CLICK FOR DETAILS: 1994 Mercedes-Benz SL70 Renntech on eBay

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1999 Mercedes-Benz SL73 AMG

The mighty Mercedes-Benz SL73 AMG: A car that can’t be mentioned without saying the word ”Zonda” in the same sentence. Less than 100 of these monsters started life as a regular SL600 with the M120 6.0 liter V12 and were shipped up to the AMG factory for some special touches and an increased displacement to 7.3 liters good for over 540 horsepower. The eponymous 7.3 liters were so good that they made their way in the Pagani Zonda and the rest was history. With so few of these cars made, if they ever come up for sale, they usually don’t go for cheap nor stay for sale long. Now that this 1999 is available for sale in California, it’s time to take a close look at this thing while we can.

CLICK FOR DETAILS: 1999 Mercedes-Benz SL73 on Hemmings

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1993 Mercedes-Benz 600SL

1993 was a huge year for the Mercedes-Benz SL in North America. For the first time in its 39 year history, the Sportlich-Leicht was being produced with a V12 engine. The 600SL was graced with a massive aluminum block 6.0 liter with forged steel connecting rods that produced nearly 400 horsepower. This was 80 horsepower more than the M119 V8 from the 500SL of the same year. Of course, you paid a premium for the extra four cylinders. The 600SL base MSRP in 1993 was a staggering $120,000 (over $200,000 in 2017 buying power) compared to $98,000 for the 500SL. But in my opinion, you definitely got your moneys worth. These were handsome, practical cars that you could depend on — unlike your friends with V12 Jaguars and Ferraris.

This R129 for sale in Connecticut looks to be a great example of the first year V12 cars and it’s in my favorite color of Spruce Green Metallic. It’s not a perfect example and has a couple minor flaws but most importantly it looks well-cared for because for as stout as the M120 V12 is, it still needs its regular maintenance and repairs.

CLICK FOR DETAILS: 1993 Mercedes-Benz 600SL on eBay

Year: 1993
Model: 600SL
Engine: 6.0 liter V12
Transmission: 4-speed automatic
Mileage: 75,375 mi
Price: Reserve Auction

This Mercedes Benz 600SL is a future classic that has had extensive restoration work performed. In 1993 when this SL was sold, it represented the pinnacle of luxury and performance, 24 years later this car retains all of its original style and character and is a bargain when you consider the refinement and features that come with this car that originally had an MSRP of over $100,000.

The owner of this 600SL maintained the car flawlessly and invested in cosmetic and mechanical work to keep this car in peak running condition. The seats were recovered and the top was replaced which give this car great curb appeal. The transmission was recently replaced so the car shifts and drives great. This car comes with extensive documentation of both the restoration work that was performed and records of scheduled maintenance being performed on time and by professionals. The Carfax on this Mercedes is perfect!

This car was owned and cared for by a true connoisseur of Mercedes-Benz automobiles which is reflected by its pristine condition. This is a great opportunity to own a V12 Mercedes-Benz!

I really like this car. Spruce Green suits this car really well and the early 1990’s design language is highlighted well. It gets away from the standard black paint that is often neglected by this point and isn’t as garish as something like red. I enjoy the tan interior as a nice contrast to the green paint while the burl wood looks to be crack-free and has a nice shine to it. The carpeting in the driver’s side footwell could use a deep scrub as well as an extracting and it looks like there was a car phone mount that was drilled into the carpet that left behind multiple holes. I’m really disappointed that the seller, a dealer of rare and unique vehicles, didn’t bother to take photos of the soft top and open the hood to show that wonderful V12. I’m sure that can be arranged, but why would you make things difficult in the first place?

I’m going to go out on a limb here and say this car won’t even sniff the reserve that is set for this auction. Not because it isn’t worth it but rather you can’t expect people to bid with confidence if you leave out key photographs and don’t show any of the ”extensive documentation” that this car has. One more odd thing about this car is that the last registration was from 2011 which isn’t the something that inspires confidence in anyone. This car is less about actually trying to sell it with an auction and more about catching the eye of a serious buyer then proceeding with the transaction from there.

– Andrew

2002 Mercedes-Benz SL600 Silver Arrow

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There exists a divided community of R129 Mercedes-Benz owners. On one hand there are those who feel that the V12 is necessary to make the car feel special and unique enough to be maximally enjoyable on rare driving occasions. On the other are more sensibly minded owners who prefer the cost-effectiveness and balance of the V8. I won’t interject my $0.02 into that discourse, but I will say that few R129 owners will disagree that a Silver Arrow SL600 is a very rare and desirable machine.

The Silver Arrow was a special edition of the R129 SL offered only in 2002, the final year of production. Only available in North America, Mercedes sold 1,550 Silver Arrow R129’s. Of these 1,550, only 100 were SL600’s. Featured here is one of those very few 600’s. I cannot recall the last time that one was publicly listed for sale, but having followed the R129 market closely since 2009, I can only recall ever seeing maybe one or two listed in online marketplaces.

CLICK FOR DETAILS: 2002 Mercedes-Benz SL600 Silver Arrow on eBay

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1993 Mercedes-Benz SL700 RENNtech

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Back in 1993, if you hopped down to the local Mercedes-Benz dealer and asked for a 600SL, they’d gladly give to you — in exchange of giving them almost $130,000. If you somehow were dissatisfied with the car in terms of performance, you called up Mercedes super-tuner RENNtech and told them to do their thing with it — in exchange of another $60,000. Now doing some quick math here, we are at a grand total of around $190,000. Keep in mind we are still talking in terms of 1993 money. To put that in perspective, that’s over $316,000 in 2016 dollars. And you thought a drug addiction was expensive! So what did this insane amount of money buy you?

CLICK FOR DETAILS: 1993 Mercedes-Benz SL700 RENNtech on eBay

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Twelve Cylinder Time Warp: 2001 Mercedes-Benz SL600 with 172 miles

Anyone looking for a brand new 15 year old car? Here’s your chance to buy what must be the lowest mileage R129 generation SL600 in the country. With 172 original miles, this car is probably as close to new as you can find. The R129 began production in 1989 as a 1990 model, and lasted until 2002; a pretty typical production life for an SL. To celebrate the final year of production, and to pay homage to the brand’s racing heritage, Mercedes released the Silver Arrow spec SL. Available as an SL500 and an SL600, 1,500 cars were produced in total, only 100 of which were 600’s.

While this car isn’t a Silver Arrow, it is a second-to-last model year R129, and is fitted in a very desirable color combo of black on light grey. I spoke with a salesman at Mercedes of Cherry Hill who informed me that the car was purchased new there, and the owner stored the car with the hopes of it climbing in value and turning a profit down the road. Needless to say, that dude bought the wrong car. He probably paid in the vicinity of $140,000 for it, and I don’t even want to know what he sold it back to the dealer for. The good news is that we have the opportunity to buy the car, in virtually new condition, for around $90K off the original price.

Click for details: 2001 Mercedes-Benz SL600 at Cherry Hill Mercedes-Benz

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1997 Mercedes-Benz SL600

The Mercedes-Benz R129 SL is on the cusp of collector status. Fellow GCFSB contributor Andy McCulley was in Washington, DC this week for a conference and we hung out a bit during the weekend, with much car talk on the agenda. After passing an SL500 Silver Arrow parked on the street, he opined that that is one R129 that will be worth money in the near future. I don’t doubt it. Few of them were built, with only 100 SL600s receiving the Silver Arrow trim. This SL600 for sale in Massachusetts might not be a Silver Arrow, but the V12 models are certainly more exclusive than their V8 siblings, with this car’s Designo trim adding on an extra serving of exclusivity.

CLICK FOR DETAILS: 1997 Mercedes-Benz SL600 on eBay

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1997 Mercedes Benz SL600

As you hopefully know, it is Fathers Day and I thought it would be fun to take a stab at finding the ultimate “dad car.” Many vehicles crossed my mind, the majority of them were Mercedes, a few BMWs and Audis as well, but there’s just something so grown up and bossy about a Benz that it makes the brand feel paternal. My own father isn’t particularly fond of the three pointed star marquee, so it is not with him in mind that I chose this car. He’s like me, a fan of hatchbacks, sleepers and rally bred machines, not the brash hardware like the SL600. However, I have no doubt he’d enjoy the soundtrack courtesy of the 48 valve V12 because who the heck wouldn’t? There may even be a chance he’d be swayed, as I was, into lusting after this car as it has a Vortech V2 Supercharger stuck on it, pushing the horsepower figure up over 400. My father was the one who taught me horsepower isn’t everything but I’ll be damned if the man doesn’t love it just as much as I do. It’s the torque that’s really impressive with these cars and all 420 lb-ft of it is needed to move the 4,445 lb chassis. Just goes to show that in a big ‘ol silver rocket ship with a removable top is where a motor like this belongs and few do this style of car better than the folks at Mercedes Benz.

CLICK FOR DETAILS: 1997 Mercedes Benz SL600 on Cars.com

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1997 Mercedes-Benz SL600

While the AMG lineup has taken Mercedes-Benz by storm over the past decade, lost in the cracks are the more pedestrian, yet equally special non-AMG V12 models. Fancy an SL with V12 power for Honda Civic money? Well, here’s your chance, although beware, because obviously a car like this won’t come with Civic-esque servicing costs.

The seller states:

1997 Mercedes-Benz 600SL Roadster. This is a sale by a private individual with the assistance of an agent. I will present (without bias) all realistic and reasonable offers to the seller.

Serial number: WDBFA76F8UF146015

36,721 original miles

Smoke Silver exterior (702 factory paint code)

Parchment Leather (565 factory interior color code)

Please see detailed photo below for list of options with factory codes

100% original paint

Perfect paint, no scratches or dings anywhere

100% original interior ~ no redye or aftermarket anything

Perfect interior ~ zero blemishes, zero.

Perfect leather, perfect carpet.

Serviced by Mercedes-Benz Dealership…not anywhere else

Meticulously maintained

Full factory books, owners manual, and stamped service booklet in factory pouch.

Perfect windshield, no chips

Perfect alloy wheels, no discoloration, no curb rash.

Both tops ~ hard and soft are perfect.

Original window sticker included.

The car drives perfect. The steering wheel is absolutely dead straight when the car is going straight. An amazing car. It is difficult to keep a 1997 looking this good. I congratulate the seller.

Low mileage R107 SLs aren’t that uncommon, but according to the Standard Catalog of Mercedes-Benz, there were only 738 SL600s produced in 1997. While the horsepower difference from the V8 to V12 is not entirely great, those who have driven them say that V12s bring a whole new level of smoothness to the driving experience. If you have the means and the resources to keep one of these classics on the road (tune ups are not going to be cheap), this is a relatively affordable way into a clean future classic.

-Paul

Another Mercedes Renntech SL74, really?

We have seen three of these Renntech SL74 beasts show up for sale this summer, which is pretty unbelievable. Our previous finds:
http://germancarsforsaleblog.com/1997-mercedes-sl74-renntech-monster

http://germancarsforsaleblog.com/1994-mercedes-benz-sl74-renntech

Sometimes an owner will see another seller claiming to have a really rare car and take the opportunity to show of his own to show the other guy he isn’t the only one. Sometimes following up one rare listing with another lets a seller piggy back on some of the excitement or the initial sale or lets them judge interest or gauge market value. Perhaps that’s the case with this third SL74.
This one is a 1996 in white found by reader Nik. It is a bit more showy than the other two we saw this year. Chromed intakes, vented hood, embroidered logo headrests, big sound system in the trunk, etc. The specs are right inline with the other two we’ve seen. The seller quotes an investment of over $200,000 and lists the upgrades as follows:

Specs:

V12 engine producing 595 BHP, 605 lbs-ft @4000 RPM. 0-60 is second 3.9 seconds and a top speed of 200 MPH 1/4 times of 11.9

Modifications:

Renntech 7.4 liter engine conversion (stage 4) $49,500:

high performance engine rebuilt, performance intake and exhaust camshafts, ported/polished cylinder heads, larger f1 valves, stainless steal resonator bypass, stainless renntech sports rear muffler.

Renntech top speed removal $1,500

First gear start transmission valve body $1,350

Renntech transmission upgrade with limited slip $7,790

Downpipes all metal catalyzers $7,000

Renntech 14″ brakes $5,760

Renntech oil cooler kit $1,250

New convertible top and brand new wheels and brand new tires.

front 245/35/19

rear 275/30/19

Pioneer DVR

Full AMG BODY Kit includes: side skirts, front bumper, rear bumper and rear spoiler. Also comes with rear seats.

includes: hard top cover

Please check out this link. http://www.renntechmercedes.com/article_files/cnd0898.pdf

With a day left this one is up to just under $17,000 reserve not met. The Buy-It-Now price is $28,900. As with the others I’ll say this again, that is a heck of a lot of depreciation. Unlike the others though this one has actually seen substantial use at 91,000 miles. That’s nice to see.

~Evan