Scotland: Edinburgh to Inverness

The car kept beeping, flashing a low tire, pressure, warning, so I stopped and had the pressure upped at a gas station: it still beeped later. Also, I need to be more careful in my driving: I drove too close to the left side of the road several times, accidentally bumping the car against the raised border.  And, finally, I had great difficulty starting the car again after stopping for photographs: my MG rental has a very non-intuitive way of starting the car.