Hmm people still make out like it needs to be tuned to be any good, I still argue that it is probably the fastest road car, stock, in GT5. You just have to give it a lot of respect and realise how damn fast you are going. I need to do a full comparison but have run it against the McLaren F1, Ford GT, VW Nardo (which is cheating as it's a concept but it's veeery fast) and TVR Speed 12, and the Veyron was at least a second quicker than any of them around Trial Mountain, which is about middling in speed/complexity.
Will try a few others such as the Enzo, 458 Italia, Murci LP-670, LFA, MP4-12C (or whatever it's called) but I honestly don't think anything else will beat it. I need to try them also on a faster more open track eg, High Speed Ring (the Speed 12 should fare a lot better), and a tighter track, perhaps Autumn Ring.
Anyone else tried a full and fair comparison? When I say stock, I fit Sports Soft tyres, oil change and all aids off but leave ABS at 1.
I should point out i'm not a Veyron fanboy, in the "real world" there are many cars I prefer (including the F1), but i'm also adult enough to remain as objective as possible
EDIT - OK I realise some of the people saying it needs to be tuned are running it in events against racing cars. I'm not entirely sure why, as it is about as far removed from a race car as you can get, and was never designed with racing in mind, but each to their own.