in fact McLaren aren't sure to keep that engine because it is nearly the same failure as Aston martin's six-inlane turbo...
That was a crazy start with Prospeed Porsche 1st & 2nd crashing together, Kirkaldy failing at the pitlane between F1 s'one and 24h's one (let's hope he has no serious injury), and that Lamborghini jumping in the barrier at the pit entrance.
After that, that become boring, Audi, Audi, Audi...and sometimes some crash. Would be nice to make some point with the level of all these GT3 :
Porsche : fast on wet track, a bit slower when it's not raining but an interesting fuel consumption.
Audi : fast and reliable thanks to Audi support (United's one had some serious problems)
Corvette : quite a good pace but a piece of s***
Aston Martin : let's wait the Vantage GT3
BMW : nice car, reliable and quite fast when it is well driven
Ferrari : good car too
McLaren : would have better not to come
Mercedes : not made for Spa (Mercedes teams had to change front height because of Eau rouge) and need some other brake pad
Ford GT : definitely a good GT3, Matech R.I.P.
Ford Mustang : no...
Lamborghini : easy to crash, and some wierd engine problem (this is basically the same as Audi R8 LMS)
Dodge Viper : old car...