To be fair John Urschel is an exceptional human being. He's 6'3" and weighs over 300 lbs. He also finished college in 3 years and then stayed on for another to get a masters in mathematics. Highly impressive!
With that said, you don't need to be big or smart to save a boat load of money. Check out this article to see how he does it...
http://www.businessinsider.com/john-urschel-explains-why-he-drives-a-nissan-versa-2015-8
What's your excuse?