You don't need to wonder how much other companies spend per hour. Take their quarterly expenses and divide by 2190. GM, for example, spends $9.7m. Ford spends $2.25m. It's perhaps more useful to look at net income - Despite spending $9.7m per hour, GM profits $2.4m per hour.

If you're General Motors, you're profiting $663 per second. If you're Tesla, you're losing $42 per second. There's a $700 delta there and it's heavily in GM's favor... But Tesla is "worth" $52 billion dollars while GM is worth $62b.