I will be commuting to my job which will be 75 miles each way on the interstate. I currently drive a 2001 GS 430 with 55k miles. I was looking at getting the Camry for better gas mileage. I currently get 25 mpg on the hwy in the Lexus, and it requires premium fuel. What would be better for hwy driving, the V6 or I4. Also, which engine will last longer since I will be putting 30k miles a year on the car and plan to keep it to 180k. Those that drive long distance everyday, do you enjoy the camry during the long commute?