and how accurate your physics are?? manufactures/magazines all over the world claim numbers and not use the term accurate. i test numbers on an open flat road like real manufactures and magazines do and that's the way to do it, it doesn't matter what your using to get those times a simple auto shifting and driving aids would get my numbers!
ex:http://www.youtube.com/watch?v=JYqkut5QWPU
be aware that there's nothing wrong with not matching my numbers numbers are also achieved in the real life depending on conditions! but some physics are way off!(or over) and lots of them here are unrealistic no matter whose, where or how you drive them!
with that if somebody can't make his physics to match real life numbers how others are supposed to match them?
my way of making physics is to test them first make sure that they match the fastest available real life numbers! especially the important sections like 60mph 100mph 125mph 186mph and top speed..