The idea, as you will have guessed as soon as you open the link, is to enter a country in the search wind, and drag that country over other countries.
I tried it with NZ and the UK (because I thought I was familiar with their relative sizes, and found that NZ is way bigger than I'd thought. Tourists are forever under estimating how long it takes to drive place to place here.
As well as the distance, you have windy roads occasionally blocked by a couple of thousand sheep, and one way bridges shared with trains.
When COVID is under control enough to allow us to open our borderes (assuming it ever is) give yourself plenty of time so you can actually apreciate the scenery (the cops here put speeding just below murder on their bad things people can do list) and drop me a line if passing though Marlborough so you can drop by for a cuppa or a glass of our lovely wine.