The 'Apple may buy McLaren' rumor is my favorite tech rumor this year. I think such an acquisition would be great for many reasons, but I'll outline 3 here.
First, McLaren is a technology company that happens to make cars. After changing its name to "McLaren Technology Group" in 2015, the company stated:
The McLaren companies now employ more than 3000 people, three-quarters of whom are not involved in motorsport. Technology drives everything we do – creating the world’s most advanced road cars, working with blue-chip companies to enhance their performance and their products, and/or developing the world’s most robust electronic control systems. Our new name therefore reflects our ever-increasing focus on innovation and the creation of disruptive technologies that will have a positive and far-reaching impact.
Having worked for a technology company, where my job involved working with OEMs, I understand how much differently car manufacturers think and operate than a technology company. Buying a car company would be an albatross around Apple's neck; the unbending 'mediocre-is-good-enough' mindset, the dealer network, the horrible buying experience, all seem to clash with Apple's sensibilities. A technology company is more malleable, and wrangling a technology company is familiar to Apple.