Double Take: 2001 and 2002 BMW M5 Dinan S2s

Double Take: 2001 and 2002 BMW M5 Dinan S2s

“Dinan’s latest work of art, he has not only fixed a car that wasn’t broken but also sought to perfect a car that everyone considers to be as close to perfection as is humanly possible: the BMW M5”, Car and Driver wrote in 2002. Dinan had, at that point, already made a reputation for themselves as the premier BMW tuner in the United States to the point where they became offered straight from the dealer. Considering that’s just occurred for Alpina here, the endorsement of the level of engineering from the California firm was resounding. Yet that is in part because Dinan’s modifications are far from just slapping a badge and some wheels on a car and calling it done. Take, for example the M5 S2.

Dinan took what many considered to be a very highly developed 4.9 liter V8 in the S62 and went old-school to up the power; and up it a lot, he did. There was no supercharger or turbocharging here; revised intake and enlarged velocity stacks were met on the other end with tubular headers and a bespoke exhaust. Each throttle body’s bore was increased, too. These changes required a reflash of the computer, but were both lighter and more powerful. As in 76 horsepower more. That’s the best part of a 20% gain on a motor that many considered to be close to peak performance! Dinan further upgraded the suspension, brakes, wheels, and final drive, along with adding a lighter flywheel. As a result, the new S2 was, well, about 20% better than the already awesome M5. But that perfection cost, and it was more than a 20% increase. A lot more.

On top of the M5’s $73,400, if you wanted a fully spec’d out S2 you’d tack on $36,000 to the price. For that amount, you could have grabbed a nice 330Ci in addition to your standard M5!…

Tuner Tuesday: 1991 BMW 850i

Tuner Tuesday: 1991 BMW 850i

Yesterday, Craig took a look at a very nice and quite affordable E32 750iL. These cars have traditionally been one of the most affordable ways to get into a V12 sedan, and consequently coming across a generally well sorted one that doesn’t require an extensive amount of service is difficult.

But the M70B50 also found its way into the replacement for aging E24. The revolutionary E31 signaled a leap forward in sophistication, refinement and styling from other period BMWs. Minus small details, it still looks reasonably fresh today; something that can’t be said of many 1980s-era designs. The three-quarter view above, for example, is mimicked closely by BMW’s own current 4-series today and the Audi A5. Yet as with the E32, the E31 has been the gateway into V12 Grand Tourers for many with aspirations loftier than their bank accounts. Finding a pristine, early 850i isn’t an everyday occurrence, so this one was certainly worth a look. It didn’t hurt that it’s been breathed on by Dinan, either.

CLICK FOR DETAILS: 1991 BMW 850i on eBay

Tuner Tuesday: 1979 BMW 320i Dinan 4.6

Tuner Tuesday: 1979 BMW 320i Dinan 4.6

The E21. By far, it is the 3-series we feature least frequently (barring new models). In U.S. trim, it is also by far the least sporting 3-series. But don’t throw the baby BMW out with the bath water, because it’s still a classic BMW, it looks nice and it’s quite affordable relative to some other hyperbolic models.

For one, I really like the E21. I’ve even enjoyed driving a few. Of course, never once did I think when driving one “You know what this needs? A M60 V8.” And certainly, even in the very unlikely scenario that idea sprang into my head, there’s no way I would have said “Right, now, off to Dinan to bump it out to 4.6 liters!”

But, if nothing else, this Golf Yellow example of an extreme E21 dispels the myth that they’re all underpowered?

CLICK FOR DETAILS: 1979 BMW 320i Dinan 4.6 on eBay

Tuner Tuesday: 1989 BMW 535i Dinan Turbo – REVISIT

Tuner Tuesday: 1989 BMW 535i Dinan Turbo – REVISIT

Here at GCFSB, we feature a lot of cars. Since I started writing for this site, I’ve composed some 1,773 articles, a fair amount of which cover more than one car. So it would be easy to forget that you’d already seen a car. That would especially be the case if a fair amount of time had passed since you last saw it and it was a relatively plain-jane looking model.

Enter this 1989 535i in Cirrus Blue Metallic. Outside of Hartge wheels, it’s pretty unassuming. That is, except for the “Dinan” badge on the left side of the trunk.

It’s that Dinan badge which unlocks a world of performance that otherwise is the domain of M models, and this sleeper package with low reported miles seems to be a pretty compelling alternative. Immediately, I recognized this car but knew it had been a bit since I last saw it. Since it was originally featured in March of 2014, very little has changed – the seller utilized the same photos and much of the same description from the original ad, disappointingly. He reports about 500 more miles in two and a half years, and unsurprisingly the price has dropped little. The auction is no reserve with an $11,250 starting bid – only about $750 less than the original ask. As the market on E34s really hasn’t improved greatly since then outside of some exceptional M5s, I’d wager this automatic 535i – even with the Dinan provenance – will have trouble this time around, too.

CLICK FOR DETAILS: 1989 BMW 535i Dinan Turbo on eBay

The below post originally appeared on our site March 11, 2014:

1995 BMW 540i Dinan

1995 BMW 540i Dinan

4The California-based tuning company Dinan has been providing performance upgrades for BMWs since 1979. There’s no shortage of newer cars on the market that purport to have some kind of mods from the firm; 20 cars come up in eBay right now under a search for Dinan, and Carter wrote up this neat ’08 550i M Sport Dinan the other day, for example. But it’s even more interesting to stumble upon an example of an older car with some Dinan components, like this ’95 540i.

CLICK FOR DETAILS: 1995 BMW 540i Dinan on Bimmerforums

Tuner Tuesday: 2008 BMW 550i M-Sport Dinan 5

Tuner Tuesday: 2008 BMW 550i M-Sport Dinan 5

I still remember well when the new E60 5-series launched. I was not impressed. It looked modern, sure, but it also looked very heavy and it was full of odd angles. It was expensive, too, and though the M5 came with a massive screaming V10, the rest of the run seemed to be pretty tame. But BMW offered steady upgrades throughout production, and the post-LCI sedans really came into their own with the M-Sport package. A few weeks ago I posted a ’08 550i M-Sport 6-speed on our Facebook page, and its popularity proved that more people are beginning to appreciate the performance value offered in this unique package. Having spent the past half year with a E61 Sport, they are really fantastic cars to drive and ooze quality and you can count me among the converted. Today I have another 550i M-Sport 6-speed, but this one has been turned up a few notches by Dinan:

CLICK FOR DETAILS: 2008 BMW 550i M-Sport on eBay

Tuner Tuesday: 1998 BMW M Roadster Dinan S3 Supercharged

Tuner Tuesday: 1998 BMW M Roadster Dinan S3 Supercharged

The other day I was talking with my friend about Turner Motorsports. I first met Will Turner when he was a BMWCCA instructor, just trying to establish his business of selling parts on the side. He and his compatriots all sported E30 M3s; this was, after all, the days before the launch of the U.S. E36 M3. Turner managed to parlay early success in a local modification scene outside of Boston into a countrywide business, and after some time in the club race scene he moved into the major leagues. Success against better funded teams was sometimes difficult, but today Turner is still alive and very much kicking, having become one of the two defacto factory-backed teams running the M6 GT3. To get to that point of factory involvement is an arduous journey to say the least, and few who start out make it.

One other who did was Steve Dinan, who took a niche tuning business from the 1980s into a factory option today. You can walk down to your dealer and order up a fully backed, Dinan modified car. That took a tremendous amount of work and is a testament to the quality of the products on offer from Dinan. They truly take the well-engineered BMWs to the next level, but modifying them to do so can be quite pricey. Take today’s M Roadster, for example. While it wasn’t exactly a cheap car to begin with, with entry level prices in 1998 starting around $42,000. This M Roadster, though, went on to get a further $36,000 in modifications from Dinan:

CLICK FOR DETAILS: 1998 BMW M Roadster Dinan S3 on eBay

Tuner Tuesday: 2006 BMW M5 Dinan 5.8

Tuner Tuesday: 2006 BMW M5 Dinan 5.8

Nate’s look at the E34 and E39 Dinan M5s over the past week is a poignant reminder of the factory-backed performance available in these super sedans. In the best style of “Q-Ships” – World War II merchant ships that hid surprising armament behind their docile exterior – they’re turned up but never outrageous. When it came to the E60 chassis though, with 500 horsepower on tap how did one increase the already world-beating performance? In Dinan’s case, there was no replacement for displacement, as they punched out the 5 liter V10 to 5.8 liters. The result was an additional 100 horsepower and around 80 lb.ft more torque while still maintaining the stratospheric redline. Yet that insane performance was available in a wrapper which looked no different than a standard M5:

CLICK FOR DETAILS: 2006 BMW M5 Dinan 5.8 on eBay

1991 BMW M5 Dinan 3.9 – Revisit

1991 BMW M5 Dinan 3.9 – Revisit


The E34 M5 may be the least-loved of the breed, but who is going to argue with a 3.9 liter stroker S38? I adore my S38B35, and the thought of a torquier, gnarlier Dinanified inline-6 with an extra pint of volume makes me tingle. This Calypso Red M5 has made the rounds, first selling on BaT in 2012 for a relative pittance before spending the last year-plus trying to spin a profit. The speculative seller has repainted it but accrued fewer than 1k miles, making clear his intentions to cash in on a rare, tuned M-car. The reality that E34s aren’t appreciating like E30s or E38s has apparently begun to set in, as he’s asking now asking $6,500 less than in 11/2014. If you’re looking for a monster E34, this is probably the way to go. But when you could be getting an E39 with 60 more horsepower and a generation newer everything, does anyone like the E34 enough to pay the premium? I’m guessing the seller is going to have to have more patience or less pride before this M5 can start spinning its wheels again with a real driver.

-NR

CLICK FOR DETAILS: 1991 BMW M5 on eBay

The below post originally appeared on our site November 28, 2014:

Feature Listing: 1999 BMW M Roadster with AC Schnitzer and Dinan Modifications

Feature Listing: 1999 BMW M Roadster with AC Schnitzer and Dinan Modifications

With all the hoopla surrounding the BMW M Coupe, it’s easy to forget about its sibling, the M Roadster. This wide-hipped roadster offers a lot of power in a very small package along with the ability to drop the top and listen to the noise of that straight six out the quad tailpipes. This Estoril Blue M Roadster is for sale from former GCFSB contributor Aaron Kraljev in Portland, Oregon. This M Roadster was his personal car and has been meticulously maintained. It also comes with a host of nice options and accessories, such as the hardtop, AC Schnitzer alloys and exhaust along with Dinan performance software. Looking to stand out a bit with your M Roadster? Read further…

Click for details: 1999 BMW M Roadster on Craigslist Portland

Double Take – Almost M: 2006 and 2008 BMW 550is

Double Take – Almost M: 2006 and 2008 BMW 550is

It seems that with every progressive generation of BMW 5-series, the gap between the outgoing M5 and the top of the line non-M 5 series narrows considerably. While there wasn’t much of a contest between the E28 M5 and E34 535i, by the end of the E34 run the 540i M Sport was – for all intents and purposes – a M5 without the S38. BMW upped the ante to 400 horsepower in the new E39 M5, once again widening the gap to the 540i model. But the successor E60 545i offered 330 horsepower with matching torque in 2003 alongside the outgoing E39 and once again the gap in performance became much smaller. That gap was made almost impercievable in 2005, when BMW revised the E60 with the increased displacement in the N62 motor. Now sporting 4.8 liters from the N62B48, the new “550i” now had 360 horsepower and 361 lb.ft of torque – a near match for the S62. What was perhaps more amazing was that the new N62 also nearly matched the torque of the new E60 M5’s S85 V10. But while that screaming V10 produced far more horsepower, the peak torque was reached only at 6,100 revolutions – hardly practical in your daily commute. In comparison, peak twist on the N62 came at a much more realistic 3,400 r.p.m.s, and on the fly these 550is were – and still are – seriously quick sedans. They also introduced the next generation of design language and computer technology into the 5-series. Some love the look while others lambaste the design. While it’s certainly not my favorite 5, at least it’s distinctive and different in a world full of cookie-cutter designs and dare I say I think it may look better today than it did new – perhaps a testament to its avant garde lines.…

Tuned BMW E60 M5s

Tuned BMW E60 M5s

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You might think that a car that has a simple button to raise its power by 100 horses might have enough, but today we have two E60 M5s that will explain to you why that kind of thinking makes you a peacenik ninny. I mean, if you can get a V10 in used Audis, then you have to do something to make your M5 stick out, right? These two E60s take pretty different approaches to power and style – supercharger vs. stroker, manual vs. SMG, Eurotuner vs. Roundel – but both represent about as insane of Autobahn stormers as you can find.

Click for details: 2008 BMW M5 on eBay

Tuner Tuesday: 1995 BMW 840Ci 6-speed Supercharged

Tuner Tuesday: 1995 BMW 840Ci 6-speed Supercharged

For many, the top dog of the E31 lineup for BMW was the 850CSi. Others will contest that aftermarket tuner Alpina got it just right with their modification of the 850CSi, the B12 5.7 Coupe. Let’s be honest though – great condition examples of those cars are hardly affordable for most, and the exotic performance comes with some potentially costly maintenance on the big V12. But I think our reader John may have spotted the perfect alternative to those cars, and it’s a bit unusual. When BMW launched the 840Ci, I remember initially thinking it was a bit of a letdown. After all, the company was seemingly running away from the signature V12 and replacing it with a smaller and less powerful V8. That, in many ways, doesn’t seem like progress. But the M60 produced 9/10s of the power of the M70, yet was less expensive and got better fuel economy. Of course, unfortunately it was also only available in the U.S. with the 5-speed automatic – and it was a lot less powerful than the CSi model. At least most of them are…

CLICK FOR DETAILS: 1995 BMW 840Ci 6-speed Supercharged on eBay

2008 BMW 335i Coupe Dinan

2008 BMW 335i Coupe Dinan

As I look forward to the next few years and what kind of car I might move into next, the BMW 3 series coupe is always up there on the list. This is a car that seemingly has it all, such as practicality, performance and the availability of a manual gearbox, which, sadly seems to be waning with the newer models. There is also a huge aftermarket for these coupes as well, from mild tunes to wild M3 clone iterations. This 335i Coupe for sale from our friends at EuroWerkz has been treated to some Dinan modifications, inclusive of Stage II software and camber plates.

CLICK FOR DETAILS: 2008 BMW 335i Coupe Dinan at EuroWerkz

1987 Dinan BMW M6 Turbo

1987 Dinan BMW M6 Turbo

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With the markets for prime E28 M5s and E24 M6s gaining some steam recently, we’ve seen mid- to low-mileage examples stretching over $30k and sometimes much higher. Today’s is a real monster in just about every way. Under 50k miles and perfect condition make it a high-dollar Shark to start, but this M6 is one of 24 M6s that got the full meal deal from Dinan including a turbo bringing the S38 to a bonkers 460hp and Stage 3 suspension. Black with M-pinstriping on later 17″ Dinan 5 spokes give the aesthetics to back up that this is a Bavarian sledgehammer.

Click for details: 1987 BMW M6 on eBay