The page doesn't really explain what a "reasonable" warranty period is. For example, the $200,000 Model S comes with a shorter warranty (4 years) than a $15,000

The page doesn't really explain what a "reasonable" warranty period is. For example, the $200,000 Model S comes with a shorter warranty (4 years) than a $15,000 Mitsubishi Mirage (5 years). Is that reasonable? Should I expect 10 times longer warranty because the car is 10 times more expensive?