Dr. Robert M FlightThat kiss at the end of Ep 2!? It's like a light maybe went off in Colin's mind? Hopefully.
Aha. And by the end of Ep 4, we get the finality of what has been brewing in poor Colin's (and let's face it, Penelope's too) head since that kiss.
Let's GO!
And let's face it, what went on in that carriage is a large part of why so many want self driving cars.
Maybe if we had more trains with private rooms?