So I arrived at the Budget rent - a - car counter and they nice lady kindly told me that they provided me a FREE upgrade to even bigger SUV . WOW I thought , lucky me , I got one of these : And half an hour later I discovered why . This monster chews petrol like oil is only $ 30 a barrel , not $ 130 a barrel .

Based on the preceding passage, answer the following question Why might I have been given an upgrade to a bigger SUV ?
Because no one ever wanted them because they are gas guzzlers .