Has John Hennessey ever found a fast car he didn't think he could make faster? His next target is the McLaren MP4-12C, which he's planning to turn the power dial up to a stonkin' 800 hp. Better reach for the fireproof suits, boys, because the flames are comin' this way! [...]

Source: jalopnik

https://www.tuning-links.com/news_3446_Hennessey+Wants+To+Boost+McLaren+MP4-12C+To+800+HP.html