...how fast is this in REAL terms?

Is it a shit your pants kinda thing?..I have had a T4 8 greens engine but configured wrong and couldnt run full potensial plus it was only about 420bhp ..my new engine IS specced for a gt35 so a T4 will get to its max

What will the estimated 0-60 0-100 and qtr mile times be in a RWD Saff?Plus on a long enuff road what would it pull top speed i know 180mph is easyish within Brunters.