The McLaren MP4-30 was a Formula One racing car designed to compete in the 2015 Formula One season. The car was driven by 2005 and 2006 World Drivers’ Champion Fernando Alonso, who returned to McLaren eight years after he last drove for the team and 2009 World Champion Jenson Button.

The car was nicknamed the “size zero Formula One car” by the team for its distinct sharply tapered rear end, which was achieved by designing the Honda engine to operate at higher temperatures than other engines.

This car was not successful on the track, but has lived on as the fastest car on the iRacing platform.