I think somebody is talking shite!
At Ford Fair 0-60's there were a number of big power Saph's that bodged their launch and struggled to get under 7 seconds, a BMW M3 Cab, think it was an R reg, did run after run in the low 6's and high 5's. I know this is over a 0-60 and a 1/4 will be a different story, but as said before it's all about the Saph's launch. Nail it - You Win. Bodge it - You Lose!