According to Auto Motor und Sport, the new hyper-performance Mac Daddy managed to complete the notorious Nurburgring Nordschleife or 'Northern Loop' in a blistering 7m 38s, but apparently can go even faster. Driving on the test day was McLaren test pilot Chris Goodwin, who was forced to take it slower than usual because of problems with the transmission. Further tests will continue between the 20th and 24th of this month near the village of Le Castellet in France.
The car features the same 650hp supercharged V8 from the 'regular' SLR 722 but has been put through an extensive weight saving program, which sees almost 660 lbs. shed from the vehicle's curb weight. It's thought this new model has been developed as a homologation special for an upcoming FIA GT race car ,but no official word has been given.
[Source: Auto Motor Und Sport]