McLaren 600LT v 720S drag race - video

The new McLaren 600LT is the pinnacle of performance for the marque's 'entry-level' Sports Series family, so how does it compare to its bigger brother – the 720S? In a new video posted to YouTube, Hennessey Performance lines up a 600LT against a 720S for an old-school drag race. We've seen numerous videos where the 720S comfortably out-sprints more expensive supercars and hypercars, so how does the smaller 600LT fare?