I have been thinking about what to do with my S4. I have put just over 100,000 miles on the clock, mostly motorway, and am either going to mod it or sell it and buy a newer one with less miles. Other than the 100K, the car is pretty mint. I was wondering if anyone has modified a car with this milage? If I was going to mod it, I would eventually be looking to go the whole way and get the RS4 turbos etc. I was wondering if the cost of a newr S4 plus all the mods to get me to 350+ BHP would actually work out more expensive than buying an RS4! Only problem with the RS4 is the bloody estate. I prefer the saloon look and "Wolf in sheeps clothing" of my normal S4. If anyone has taken a UK S4 to 350+ BHP, how much did it cost?