Well the R8 4.2 is faster to 60mph then the Gallardo, 3.9s vs 4.0s of the fastest magazine tested times, But thats where it ends. Maybe he meant the 5.2 V10 version, Which is a good deal slower then the LP560, And a bit faster then the LP530 SuperLeggera. Plus Lambos back then still had the SCT, Or you could just get a 2008 ZO6 or 911 Turbo and smoke them both if performance is what your looking for.
The last gen R8 V8 actually made damn near its claim for power, I havent seen any dynos of more then 440Bhp, Back then Audi wasnt lying there arses of about how much power they really made, Not NEARLY as much ike today, So its not anywhere near 560Bhp. I think your getting your R8s mixed up.