Currently reading: New Audi S4 caught testing
Next generation S4 to be lighter and more economical

This next-generation Audi S4 could be the super-saloon that ends the German power wars. Our spies have caught the 2010 S4 undergoing high-speed testing at the Nurburgring and sources suggest that there’s a supercharged 3.0-litre V6 under the bonnet instead of the current model’s V8. Insiders tell us that Audi wants to reduce the weight and improve the fuel economy of its new S4, while offering performance that’s on a par with the current models.Meanwhile, it looks as though the range-topping RS4, likely to arrive in 2011, will retain its V8 in an effort to separate the appeal of the two variants. Audi sees the new S4 as a rival for the likes of BMW’s 335i while the next RS4 will take the fight to the M3.

Will Powell

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blasos1983 21 June 2008

Re: Spied: New Audi S4

I would say alot of manufacturers will go the decrease in capacity route, it will be interesting to see if Audi can maintain/better the S4 perfomance.

Big Chuck 21 June 2008

Re: Spied: New Audi S4

NiallOswald 30 April 2008

Re: Spied: New Audi S4

Onehp wrote:

NiallOswald wrote:

Why would they use a supercharger if they're looking to improve efficiency?

Because when you take it easy - supercharger hardly working, you have a "frugal" 3l V6

Yes, I understand the rationale behind using a smaller engine with forced induction over a larger NA engine. My question was really 'does the article mean turbine or belt-driven supercharger'. The problem with a belt-driven supercharger is a) The power to drive it is taken from the crankshaft and b) Its speed is determined solely by engine speed, meaning it's consuming power even when the engine is not being worked hard.

Given Audi's history of turbocharging, I would be surprised to see them using a belt-driven 'charger hence my question.