Possible Clues:

• A problem for the traveller from Spain heading to Lima in expensive car
• Physical consequence of being let out in fast car?
• The problem with flying plane to American city for golf
• Tiring of long-distance flights?
• Drunk let aboard car? It's a problem for traveller
• Travel disorientation
• Traveling woe that melatonin can decrease
• Flight risk?
• Fatigue caused by travel
• Fatigue after a long flight