What is fastest a Ferrari or a lamborghini?

I haven't seen any comparrison between the Murcielago SV and 599 yet so straight line it's probably the SV as its lighter, has more power and AWD.

Around a track the Ferrari F430 Scuderia has been proved to be faster then an Enzo, but the Gallardo Superleggera might be quicker.

It's difficult to compare two brands like that as you'd have to get all the models on one track and let one, very good, driver test all of them and see which is fastest.