Here's a question that many people get wrong, yet it's such a simple answer.

You need to give me the keys first so I can test it out

On the face of it, 1 hour (neglecting acceleration an assuming steady progress at 80mph)...

... [i]but[/i]...

You did not ask "How long will it take to travel 80 miles at 80mph?"

You stated the vehicle is capable of travelling at 80mph, but[i] then [/i]asked the time any of us would take over the journey!

We might for example drive that vehicle the whole distance at a steady 60, and then it would take 1hr 10min.

Or indeed we might not even use that vehicle, but use public transport, cycle, or even walk - though walking would probably need spreading over 2 or 3, even 4, days.

Alexa said 45 minutes

If we assume the vehicle travels in constant speed, then it's an hour, otherwise it may take longer or shorter.

Depends on traffic and the speed limits

An hour?

One hour

One hour.

One hour.

1 hour....

Depends on how fast I decide to drive it. And also when I start the engine and put it in drive. It could be forever if I just sit there idling.

Its like this one which many get wrong as well

Which weighs more a pound of feathers or a pound of rocks