Lets assume we disqualify the cars going left ro right, and if we also assume each car only has 1 person per car, that means the cars is 32.

A bus that size is usually built to fit around 50ish people using every seat, but none standing.

I ride my local bus everyday. It's NEVER full like that. I might have 6 people on the bus. Sometimes I'm the only rider.

So, yeah, a bus CAN hold roughly as many prople as cars, (again assuming only 1 person per car, which probably isn't the case 100%), the reality is that's not functionally true.

If this is America/Canada while it could be carrying more people the sad truth is that it's probably carrying half a dozen people because it's likely going from one unwalkable neighborhood to another. Especially up here in BC there's a stark difference between downtown buses running between unis, skytrain and the dense core of Vancouver to the ones you'll see in a suburban hell like Burnaby.