[footie]

I am amazed by this statement. You think the 335i to be below the S4 in terms of what???
......performance - clearly yes but not for the lack of output from the 335.
......handling - it shouldn't be but most lap times so far would suggest that the S4 is indeed much quicker.
......price - that really depends on the country in question.
......space - the S4 is slightly bigger which should help the 335 but doesn't.
......weight - again the S4 is a lot heavier but is still the better handler.
......driving pleasure - here is the one area where the 335 might have an advantage if previous history runs true and without additional tests is to hard to make an opinion of yet.

So on reflection your opinion might be correct, the S4 is a class above in almost every way. Though the funny thing is that the 335 has beaten both the old S4 and new S5 which both have more powerful V8 engines, so it maybe the switch to a smaller engine and the trick rear diff that has lifted the S4's performance beyond the S5 and 335.