My FIL drives all over doing outside sales, about 3-4k miles a month. He always has driven a Ford Explorer. A few years ago he got a Lexus rx something but it was a hybrid. Great gas mileage only true down side was no local mechanic wouldn't touch a hybrid had to take it back to Lexus for service, something to keep in mind is service. He swapped it for an Explorer after 2 years. I personally drive about the same as him doing sales and service and drive a Nissan Sentra. In city its 23ish mpg an hwy is 30ish and repairable at any mechanic easily. Just a though depreciation aside repairs are huge in a sales/driving job. Generally they wont cover repairs beyond your current allowance so costs are vital.