The film begins with skyline shot and a car being cabled across the screen.
Wait, is that a toy? Nope, it's a real car.
The sky is really smoggy, and we quickly learn this is Los Angeles.
Ooh, look, it's Tom Cruise! He's watching some men lower the car (which is a Lamborghini).
He checks out that car, as well as some others, and then rides away in what is definitely not a Lambo. So, he clearly doesn't have buckets of money himself.