Massive flights to South America completely drain all energy by the time the wheels touch the tarmac. Local counter staff often use that extreme exhaustion to push crazy expensive insurance upgrades on arriving tourists. You can check options to rent a car in Peru right here
https://getrentacar.com/en-US/peru . A solid four wheel drive from those listings makes navigating the rural routes toward the ruins way safer. The mountain paths get pretty unpredictable after sudden rainstorms, so proper traction keeps the whole journey moving smoothly.