• Oct 7th 2008 at 12:01PM
  • 12
Click above for high-res gallery of Audi TT-RS spy shots

A pair of Audi RS performance cars have been caught testing and show what the German brand has planned for these ultimate examples of the TT and A5. The TT-RS was snapped in production ready form and shows off some serious design tweaks including two gaping intakes flanking the already gaping corporate Audi grille, chunky fender flares at all four corners and a pair of large oval exhaust tips embedded in the rear bumper. Powering the TT-RS is expected to be a twin-turbo 2.5L five-cylinder engine producing between 350 and 390 horsepower, which will easily make it the fastest production TT ever.

Click above for high-res gallery of Audi RS5 spy shots

The next car is the RS5, and less is known about this model since it was snapped wearing the guise of an S5. Caught on the Nurburgring in Germany, this RS5 mule is wearing an RS-inspired front end, but confuses the camera lens with its lacked of flared fenders and quad exhaust tips where one would expect an RS model's typical dual ovals. Still, there wouldn't be much of a reason for Audi to test the current S5 on the 'Ring, so what we're looking at must be an RS5 mule. What will power the RS5 is still speculation and could be either the 4.2L V8 from the RS4, a twin-turbo V8 or the Gallardo-based V10 from the RS6.

[Source: KGP Photography]

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    • 1 Second Ago
      • 6 Years Ago
      Am I the only one to think that Audi needs serious motor rationalization these days? It seems like they have new motors - and variants of those motors - for every new model. Its amazing that they can get them all certified for US/EU emissions. Don't get me wrong, they're all impressive but why not standardize a little?
      • 6 Years Ago
      Audi has done a great job with the S5. It just looks really good, so it can only look better as it transforms into an RS5.

      I would go with the tt V8
        • 6 Years Ago
        Agreed. Looks really good.
      • 6 Years Ago
      Twin turbos on a 5-cylinder? Not likely.
        • 6 Years Ago
        perhaps they mean sequential turbos?
        • 6 Years Ago
        A staged turbo setup with a smaller and a bigger unit or a combination of supercharger/turbocharger is quite possible.
      • 6 Years Ago
      I doubt that the RS5 will have a V10. I'd imagine it will be powered by a V8 of some sort with at least 450hp.
        • 6 Years Ago
        Yup, everyone talking to people at audi (CAR, EVO, etc) is hearing Twin Turbo V8 right now.
      • 6 Years Ago
      If its the TT V10, we need not worry about seeing it in the US. That engine wouldn't pass emissions in the RS6.

      With BMW going TT V8 in the M5 and possibly other cars, I wonder if Audi won't do the same eventually.
      • 6 Years Ago
      Since Audi increased the piston diameter from 84.5 to 85.5 in their V6, that could be applied to the V8, 4.2 to 4.3 liters.
      So an increase from 414hp to 425hp, and an increase of torque from 317 to 325ft-lbs.
      and maybe more power with Audi Valvelift 450hp?

      A 5.3 liter 500hp audi Valvelift V10 would be nicer though.
      • 6 Years Ago
      (Thumbs up) to the RS5 - I want!

      With the Quattro Sport Rear Differential and Audi Drive Select, this car will handle spectacularly. It's great to see Audi coming out with such dynamic vehicles these days!
      • 6 Years Ago
      is it just me or does the bit underneath the headlights on the tt look too much like a lambo. same with the rs5
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