an hour and a half
about 45 mins
About 8 hours or it can be less
A long time
If you are asking about the Cornwall in England, then you can't drive from there to Los Angeles, because of the ocean.
A drive from Las Vegas to Los Angeles would take about 70 hours.
few days
50 hours
One side of North America to the other is about 73 hours.
37 hours
Google Maps estimates the driving time as 5 hours and 49 minutes.
walk..
41 hours