For such a relatively short-lived and obscure model in the U.S. market, the 90 model sure went through a substantial amount of changes. It makes nearly every model year unique in some way, and so few come to market they’re always neat to see regardless of the generation. The 90 replaced the 4000 for the 1988 model year with the upgraded Torsen-based quattro, the new B3 body and interior and the updated 2.3 NG 10V motor for the 88-89 model year, and was sold alongside the technically identical but less upscale 80 model for the same time. 1990 saw the introduction of the short-lived double-overhead cam 7A motor and some other minor changes, but scant numbers were brought over. Technically, there’s no ’92 90, but there are still some floating out there because…well, Audi. Then officially in ’93, the “B4” chassis arrived, with revised rear suspension, body bits and a new 2.8 liter V6. Even then, for the ’93-’95 B4 quattros, each model year was a bit different – surprising, given their very limited numbers. Available only in “CS” upscale trim, the 1993 90CS quattro, 1994 90CS quattro sport and 1995 Sport 90 quattro only combined for 2,855 examples. They’re pretty hard to find, though admittedly there are even fewer ’90-91 20Vs or ’92 80 quattros floating around.
Most of these cars were upscale and featured either the Speedline-made 10-spoke 15″ wheels or the later Ronal-made Votex 5-spoke design. A raised spoiler and limited badging were hallmarks of the later ’94-’95 sport models. Though generally not as desirable as the ’95 Sport model, the ’94 is more rare and just about identical to the ’95 model. So, when they arrive in near perfect condition with under 100,000 miles, the bids start rolling in for the devoted fans who love them:
Update 5/18/18 – After failing to sell last year at nearly $8,000, this sweet and rare 1990 Audi 90 quattro 20V with some fantastic period-correct BBS RS wheels is back on eBay with an opening bid at only $4,000!
Just as they had with the development of the 10V Turbo for their top tier products, Audi’s work on the Group B, Sport and later RR 20V Quattro (along with the creation of the original S-series cars soon after) trickled down into the rest of the range, but only in a very limited fashion. The 7A 2.3 liter 20V motor was the beneficiary of that racing work, and it was at the time a pretty impressive unit. Out of 2.3 liters, Audi squeezed a very reliable 164 horsepower with a screaming 7,200 RPM redline. While it’s true this was down on peak power to racing motors like the M3’s S14, the adding of the second cam and a modern EFI engine management also yielded nearly 160 ft.lb of torque.
So why does everyone claim that this car was under-powered?
Weight. The luxury-oriented B3 was most popular in Coupe form, where at 3,300 lbs in 1991 it was in need of a diet. It was 30 horsepower down on the BMW, and weighed 500 lbs more, with a more frontward weight bias. A performance car this did not make, and the result was that the expensive Audis leisurely gained speed. Despite the near 50% power increase over the outgoing Coupe GT, a stock B3 Coupe Quattro shared near identical 0-60 times and cost $10,000 more.
But if you were a clever buyer, you could get slightly better performance out of the 4-door variant of the naturally aspirated double overhead cam inline-5. That’s because concurrent with Coupe production, the motor and drivetrain was offered in the slightly lighter 90 quattro 20V:
Back to big Audis! The early 1990s were, as I’ve described in the past two posts, a period of change for the Ingolstadt firm as they closed down production on the Type 44 to introduce its new replacement, the C4. That led to a dizzying assortment of models from the one chassis. There was the aforementioned 100 and 100 quattro. You could move up to two turbocharged models, too – the 200 Turbo gave you 165 horsepower through the front wheels, and the new-and-only-for-91 in the U.S. was 200 20V quattro. Europe and the rest of the world got even more options; production lasted right up through 2006 in parts of China, where they even made a crazy long-wheel base 4-door convertible version of the Hongqi.
But the top of the heap for the U.S. market was a derivative of the Type 44, the D11 chassis. Of course, that was Audi’s foray into the top-tier luxury market with its new all-aluminum 32 valve double-overhead cam V8. Body revisions to the front and rear along with flared fenders made the V8 quattro seem like a completely different car to the slab-sided 100. V8s had, and have, serious presence. Big news, too, was that for the first time Audi was able to match its all-wheel drive quattro setup with a new 4-speed automatic transmission.
For die-hard Audi faithful, though, for a short while you could still opt to row-your-own with the 240 horsepower 3.6 liter V8 singing to your right foot. These manual V8 quattros are legendary because of their rarity and that they are the only car Audi brought to market with twin Torsen differentials. The combination of a more rearward weight bias, big and instant torque from the V8 and those clever diffs made for one of the best driving experiences in a big sedan from Audi:
So on to the C4 chassis. Though it was instantly recognizable as an Audi, the all-new C4 bore little resemblance to the boxy C3 it replaced. Fluid lines and curves dominated the design, while new running gear and motors made a splash in performance. The C4 continued to stress Audi’s pioneering aerodynamic tradition, but the result this time was a car which seemed far less top-heavy than the chassis it replaced. It looked more trim even if it was a big bigger than the outgoing model.
On the fly, the 100’s new motivation was a revelation. The 2.8 liter V6 replaced the 2.3 liter inline-5, and though horsepower was only 172 and torque 184, both figures represented a nearly 30% gain over the 5-pot. New, too, was a 4-speed automatic transmission. And while the inside looked little different from the last of the C3, only switch gear was shared and the C4 brought a host of new safety and convienence features to the large-chassis Audi.
Strange, though, was the re-appearance of Audi’s earlier naming convention in the U.S.. Back in the early days of the 5000, Audi had used the “S” and “CS” monikers to denote turbo and quattro models at times (but, again being Audi, inconsistently). Well, the S and CS were back after a four-year hiatus. Base model 100 came with steel wheels, while the “S” model stepped you up in options and gave you alloys. But outside of the 20V turbo S4 model, the 100 to get was still the 100CS, which was the most loaded and gave you the option for Audi’s quattro drivetrain. Fully loaded, they were around $35,000 – not cheap, but also not the most expensive in class, and were still unique in offering all-wheel drive.
However, like the C3, the front-drive 100/100S/100CS outsold the quattro model by a fair margin.…
It’s often difficult for a second act to follow a legend, and that’s just what the C4 S4 had to do when it launched for U.S. customers in 1992. The Type 44 was already a fan favorite before the 20V version appeared here briefly for the 1991 model year, with wider flared track, bigger brakes, and more power. To answer fans, Audi introduced an even more potent version with the S4; even bigger wheels, lower suspension, and a few more horses were encased in a thoroughly modern shape, yet one that was easily recognizable to fans of the brand. With a reputation for smooth power delivery and still the market cornered on all-wheel drive performance luxury vehicles, Audi’s new S4 sold out almost immediately in a period when the European makes had difficulty moving their expensive wares.
But the Type 44 still held one advantage over its replacement; an optional fifth door. While the Avant version of the new 100 was available immediately, there was no range-topping S4 wagon brought here. That was finally remedied with the relaunch of the now renamed S6 Avant for 1995. With smoothed out bumpers, revised passenger mirror, rolling changes such as new Speedline Avus 6-spoke wheels replaced the Fuchs that the S4 wore, and headrests became closed. There were more changes with the ‘95.5’ model; the infrared remote locking became radio frequency and the B-pillar receiver disappeared; so, too, did the option to lock the rear differential yourself, as Audi opted to work in an electronic differential lock utilizing the ABS speed sensors rather than a physically locking rear end.
These were really only minor changes to the recipe, which at its roots remained a fan fantasy. The traditional inline-5 that had hung out of the nose of the high-end Audis was still there, with its dual-cam head augmented by electronic fuel injection and electronic boost control.…
Weather. It’s today’s weather that makes me instantly think back to my V8 quattro. Here in New England this morning I emerged from my weather-proof cocoon hidden carefully under several layers of blankets to reveal the foot-plus of powdery snow, blowing fiercely with a sustained 35 mph wind, and a temperature hovering around 9. Maybe for you folks in Minnesota that’s a nice Spring day, but I think it’s just brutal. Yet when it occurs, I instantly think back to the car I had that made me relish those conditions. It was my ’93 V8 quattro, without hesitation.
When the mercury dipped below freezing and the roads were covered in snow, that car was simply a monster. Audis certainly have a reputation for being good in the snow, it’s true. But here’s a hint – I’ve owned a lot and driven even more, and they’re not all great in the white stuff (ducks). They’re also very tire-dependent, perhaps moreso than other cars. Because with all-seasons on an Audi, you’ll have no problem going fast in deep snow, but you’ll have quite a few problems turning and more problems stopping.
But I had snow tires on my V8. Tiny little A4 steel wheels overshadowed by the widened flares with tires that look fit for…well, an basic B5 A4 rather than a large executive. When that white stuff fell – look out. It was unstoppable, but not in the bad way I just mentioned. And unlike the terminal understeer some of my other Audis suffered from (I’m looking at you, 200!), all you had to do in the V8 if the nose wasn’t heading where you wanted to was to give it a boot-full of throttle. A tremendous roar would emerge as the 4-cam all-aluminum V8 sprung to life, the multi-plate center differential channeled power towards the back, and the Torsen rear diff limited the slip of the unladen tire.…
Audi’s nomenclature took an interesting turn once again in the early 1990s. From the B2’s “4000CS quattro” – the only way the car was available at the end of the run, Audi had introduced the tiered 80/90 quattro for the B2 model range. That culminated in the 90 quattro 20V, but even though the run of the B3 was short in the U.S., by 1991 the model was already 6 years old for the European market. Audi then skipped the 1992 model year for the 90, offering only the holdover 80/80 quattro while it readied the 90’s replacement. That replacement was…the 90. But strangely back again was the S/CS model designation in this “new” chassis, the B4, which was a heavily revised B3 chassis with some new sheetmetal and trim. But the big news was new engines; gone was the NG and 7A, last of a long line of inline-5s that had populated the noses of small Audis since the late 1970s. In its place was the AAH 2.8 liter 12 valve V6. Rated at 172 horsepower and 184 lb.ft of torque, on paper it was the superior motor to the double-overhead cam inline-5 it theoretically replaced. But the power delivery and experience were entirely different. While the peaky 7A encouraged you to explore the upper realm of the rev counter, the AAH wasn’t particularly rewarding at the redline. Where it was superior was in low-end torque and it’s smooth power delivery, and though the cast-iron V6 was no lighter than the inline-5, it’s shorter overall length meant that some (okay, only a bit) of the nose-heaviness that had plagued the B2 and B3 series was forgotten.
But the ‘CS’ quattro moniker only lived a short two years in the U.S. before it, too, was replaced by the last-year oddly-named Audi Sport 90 quattro.…
After two clean 90s, it’s time to look at the much greater appeal of the turbocharged S6 Avant. Imported in even more limited quantities than the 90 quattro 20V, the wagon form of the C4 with AAN turbo power has been legendary since its inception. But with a very limited stock and a chassis known to pile on mileage with aplomb, clean and low mileage examples are few and far between.
So I’ll start off with admitting that this S6 Avant is not perfect; if anything it’s probably far from perfect by most standards. There’s body damage, a replaced hatch, the wrong wheels, a fair chunks of missing paint. It’s got 179,000 miles and is in need of a suspension refresh. It’s 22 years old, too, so you can bet it’s got some Audi idiosyncrasies. And with that, most of the 911 crew just tuned out.
But, and it’s a big but, it’s a S6 Avant. As such, it’s automatically worth investigating if it runs at all. And dig beneath the (admittedly somewhat ruined) exterior, and there’s a fair amount to like here:
While some may feel that my foray into BMW ownership has swayed me to the dark side of German motoring, I still have a very large soft spot for the classic inline-5 powered Audis. And one of the most outstanding deals, until very recently, was the S2 range. Oft copied in the United States as it was never offered, the S2 was available in frequently seen Coupe and far less found sedan and Avant variations. The last is best known in its ultimate development as the Porsche-built RS2, but even the standard S2 range was nothing short of impressive. With 220 horsepower available from the 3B and later ABY turbocharged dual-cam inline-5s driven through all four wheels, they weren’t the fastest off the line but could hang with their countrymen easily on the fly. As they near legal importation status, prices have started to rise slightly – but they’re still quite affordable compared to many other contemporary limited-run performance options. This ’96 is a great example:
If Sunday’s A4 represented the new wave of Audi products, the C4 S6 was the end of the decade and a half dominance of the turbocharged inline-5 in the brand’s marketing. True, it continued on in other parts of the world a bit longer, but the writing was on the wall and the 1995 model year was the last in the American market. There’d be a big gap until the next S model launched in the U.S., which helped to solidify the legendary status of these stealthy super-sedans. Since there was no immediate replacement for half a decade, the S6 maintained its top-trump status among four-ring fans for longer than it probably would have been expected to.
The result of that was that they retained a strong fan base of owners and many more who wished, but could not afford, to grab one. As soon as they were out of warranty (if not before, in some cases), the wick began to be turned up – and those that know the AAN know that there’s a lot of wick there to burn. In recent years, the wave of electronic fuel injection tuning and aftermarket support has not waned but grown for these cars; like German Supra Turbos, they’re the evergreen forced-induction chassis you just never tire of seeing. Today’s example is no exception to the rule, and with 500 horsepower and a host of high-dollar upgrades, it’s ready to embarrass much newer metal.