I've seen the Mclaren a couple of times now and wasn't personally taken by it's looks. To my eyes had it worn a Lotus badge I could easily have seen this design as the new Lotus Esprit. It looks dated to me next to the simplicity of the 458.
The performance stats being quoted on the Pistonheads link are a bit naughty as well. I received an e-mailshot from Mclaren on Monday and they quote the 0-62 figure as 3.3 seconds on standard tyres and 3.1 on the Corsa tyres. Ferrari's time is for standard tyres.