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Audi is returning to turbos in a big way lately. Look no further for proof than the RS6 Avant sporting a twin-turbo V10 producing 510 HP. The smaller S4 sedan, however, hasn't been force fed since the B5 version with its biturbo 250-horsepower V6. The next two generations were powered by the brand's ubiquitous 4.2L V8 in both non-direct inject and direct-injected versions. AudiWorld has revealed that the newest B8 iteration of the S4 will return the car to turbos once again when it debuts with a biturbo 3.0L TFSI direct-inject engine producing 330 horsepower. This is significant news for a couple of reasons. For one, as AudiWorld points out, the new S4 will be far more receptive to modification than the last two generations with their naturally-aspirated V8s. Presumably it will also be more frugal with fuel than the 4.2L V8-powered S4s before it while producing almost as much power. Finally, the S4's 340 horsepower will best the BMW 335i with its 3.0L twin-turbo inline-six by some 30 horsepower. It's a small victory, but we're sure Audi will take it. Along with high-po powerplant, the B8 S4 is also expected to get Audi's vectoring quattro system that can dynamically send the twist to any wheel it wants. The previous active sport differential system could only split torque between the rear wheels. AudiWorld also reports that the new S4 will go on sale in the U.S. in late 2008, the same time as the A4. This means we should expect the S4 to debut at either the Detroit Auto Show in January or the Geneva Motor Show in March.

[Source: AudiWorld]


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  • 20 Comments
      • 7 Years Ago
      Not trying to be a jacka** but the RS6 actually produces 580 hp and NOT a puny 510 ;-)
        • 7 Years Ago
        Mmmm... drove by an RS6 just this afternoon :) He was sitting at a turn light and I turned around to check it out as I went past and realized afterwards I had totally pissed off the guy in the A4 next to me who had been trying to get my attention for a few minutes. Oops!

        This baby would sure get a few looks from me though, that's for sure... I especially love the new lights, particularly the way they look on the R8. Very elegant and distinctive.
      • 7 Years Ago
      About damn time! I tend to like Audi's styling the best out of the deutsch großen drei, but that V8 just isn't up to the task for this segment anymore. -- Those narrow-angle 6s have been just asking for forced induction, and by picking this configuration, it means that Audi will be moving the S4 to exactly the same market as the 335i (which has practically the same motor configuration).

      Audi, ditch the naturally aspirated 6s in the US also and focus exclusively on the 2.0t (big turbo version), 4.2L high-rev, and now the 3.0tt. That's a winners circle of awesome motors there. They are currently good for 265, 420, and 330 hp respectively, but I'd bet they would dependably reach 290, 450, and 380 hp.
      • 7 Years Ago
      uhm what?? the 4,2 V8 was ith the RS4 not the S4 right?
        • 7 Years Ago
        No, the 2004-06 S4 does have a 4.2 V8 with 340 hp (my ride), the RS4 has a Direct Injection FSI 4.2 V8 with 420 hp. I'd rather have the 330 hp twin turbo though, wonder what just a chip would bump that up to.
      • 7 Years Ago
      The question is whether the price premium will be worth it. The S4 will undoubtedly cost way more that a "base" 335i
      • 7 Years Ago
      whooosh......go da turbo.
      more power from a smaller engine, and less gas.
      we need more...the domestics produce how many turbo vehicles? doh!
      come on guys.
        • 7 Years Ago
        Yes, because turbo's are inexpensive to replace, and they last soooo long in Audi's. Love the car though.
      • 7 Years Ago
      The 335i puts down 275-285 hp to the wheels, so it's actually more like 340-350hp. We'll have to wait until the official pricing from Audi comes out to see if it's really worth the extra money (I'm assuming it will cost more than a reasonably optioned 335i). I'm sure it will be a great car though, and should have a lot of tuning potential with the FI engine. *Disclaimer* - I own a 335i so I'm somewhat biased. ;-)
      • 7 Years Ago
      It will be fast, expensive and very heavy.
      • 7 Years Ago
      S4 doesnt compete with the 335. Negligible comparison. Like the S5, it's neither a BMW 335 or M3's direct match in both power or price. It will likely come in at somewhere in the mid 50's (335 comes in at 43k) which would pin it as an alternative to the Lexus IS-F and the upcoming CTS-V which will both have far more power (though arguably less class and refinement) for roughly the same price
        • 7 Years Ago
        you can option almost any German car into the stratosphere. However, the 335 does start at 43k and is well equipped at about 47k. The S5 is slotted above the car in base price and content and so there is no way to get it down in price. In fact the average 335 sells for roughly 47k and the average S5 sells for near 60k, not a small price difference. And check your sources. The IS350 starts at roughly 38k with the IS-F expected to base at 55k, a full 13k more and nowhere near the RS4, M3 C63 which are closer to the mid-60k/low-70k.
        Again, S4, awesome car, but would be smartly priced at 47k base and let the buyers chose their additional content and only then would it really challenge the 335/IS350 crowd.
        • 7 Years Ago
        "Like the S5, it's neither a BMW 335 or M3's direct match in both power or price."

        The BMW's power is significantly underrated (they are extremely comparable in power -- though Audi is known to underrate power, Its probably not nearly as BMW).
        The BMW is available with the following options which are standard on the current S5 (which, if chosen, make them both essentially the same price):
        * 19" wheels & sport suspension ($2,200)
        * Active steering ($1,400)
        * Active cruise ($2,400)
        * Leather and some other goodies ($2,300) (the S5 technically has premium leather standard, but the 335i has no option for that)
        * Sirius ($595)
        * Heated seats and some more goodies ($750)

        "which would pin it as an alternative to the Lexus IS-F and the upcoming CTS-V which will both have far more power (though arguably less class and refinement) for roughly the same price"

        So you know, the IS-F is expected to be priced at just under $70k. The IS350 is the proper competitor for the 335i, Audi S4, and similar. However, I'd completely expect the CTS-V to be in the slightly-over-$50k group, and if they end up improving it as much as the normal CTS, it will be an excellent value.
        • 7 Years Ago
        fast expensive and maybe not quite so heavy. If they could do 3500 pounds and decontent it so people could choose options rather than have it be priced out of their range it would be nice. Anyway I'm done with fat overpriced german cars
      • 7 Years Ago
      But seriously, I'd like to see if Audi can match the 335i's engine tunability. 335i owners are now easily reaching 400-410WHP with only an aftermarket exhaust system and an engine management system. Crazy...
        • 7 Years Ago
        Have you ever seen a B5 S4 with the stage 2 goodies? (full exhaust, chip) It easily keeps up with or beats a B6 S4 with the 4.2L V8.

        Count on this new engine throwing down some serious power with the same upgrades.
      • 7 Years Ago
      way more "than" a base 335i
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