yes, the driver, but not the passengers. I doubt he drives his own car.

If the cameras can see the driver, they can also see the front passenger. And who gets in or out of the stopped car. Istael/US probably analyzed months of footage to establish patterns and uncover their habbits and schedule.

Most VIP situations, the VIP person sits in the back. Luxury car brands like bentley or limos are specifically designed for a comfortable back seat. The backseat typically has much darker windows

Yes but they also make a show when they get in or out of the vehicle. Several bodyguards flanking them, opening doors for them, the driver getting out of the vehicle, red carpets etc. Khamenei was also wearing distinctive clothing to make it even more obvious.

neat, but most people have this show on private property and not on the street where the public cameras are pointing.