This ultra-rare supercar just sold for $13.75 million

AP

The final sale price falls within Sotheby's $12 million-$15 million projected value.

The McLaren is the crown jewel of a collection of 65 cars an anonymous collector put up for auction this summer.

The Sotheby's car is one of 106 McLaren F1 vehicles ever built and just one of a handful in the "LM" specification.

"The F1 is a technological tour de force and a real triumph in terms of packaging and design," McLaren Automotive executive chairman Ron Dennis said in a statement in 2010.

"Whether endurance racing or on road, it is supremely fast, agile, and yet comfortable. Its styling is enduring and will never fade."

Here's a closer look at the amazing McLaren F1.