fastest saloon de-restricted?

hi i’m in the market for buying an uber saloon to my car collection, and i want the fastest based on what they are capable of de-restricted. i am currently looking at the mercedes s65 amg, the audi rs6 saloon, bmw m5, cadilac cts-v?, i wont be buying until 2009 when the new models come out i dont know whether to wait for the next gen bmw m5 e62 when its launched because it rumoured to have near 600bhp or the next gen merc s65 amg because who knows how much power that might have. but could anybody on here tell me which of these cars would be the fastest de-restricted, i am intrested in the brabus range and i also hear that ultimate aero are producing a super saloon as well, with so many choices of super saloon, i wondored if anybody on here could point me in the right direction in terms of most important speed when de-restricted but also features and luxury etc too?

One Response to “fastest saloon de-restricted?”

  1. Simples xD on July 11th, 2010 4:59 am

    AUDI RS6. about 730bhp. and comes with everything inc 4wheel drive