Cars are large, complex and expensive. They take up valuable space. I'm collecting motorcycles. There are good deals going around these days if you're willing to travel, and most classic bikes are on the way up in value. You'd be amazed at what an early 70s Honda 750 is worth today. Back in the day it was just a junky bike mass produced in Japan. People are parting bikes like crazy on eBay, dwindling the available supply of whole bikes. I expect this trend to continue. Most of my bikes are seeing at least 10-20% appreciation per year. And, I get to clean, ride and admire them
If you had, say, a $250K portfolio in motorbikes, well, that's a pretty good return.