Sam Collins examines McLaren MP4-24's 2009 turnaround

Sam Collins, the F1 TV technical analyst behind the YouTube channel Sam's the pits, has released a video looking at the McLaren MP4-24 and its turnaround during the 2009 season.

The car started the year as one of the slowest on the grid but was winning races within months. Collins looks at the engineering missteps that left McLaren off the pace, then traces the aerodynamic overhaul and the Mercedes KERS hybrid system that helped unlock performance.