Sam, these are not cars, they are a strange sort of motorbike which really is a taxi. You can hire them to sightsee.
Sam, there are lots of small cars in Lisbon because the traffic is very bad. This one is a rather nice colour!
Sam, this crane is on a boat and it is digging mud out of the River Tagus in Lisbon,
Sam, this digger is also digging out mud from the River.