Don't know where some of you guy's got your information but if you said that the 6 cylinder is better then the 4 on any other site you would be run out of town !

The 4 banger is the better engine and always has been. 200,000 is the average miles and many , many of them have passed 400,000 and this is the original engine. The only reason some people like the 6 banger is for more power and speed but not for endurance or a longer lasting engine. More 6 bangers are rebuilt much sooner then the 4 bangers hands down.
Not much difference in gas mileage unless you drive like you want to save money . If you drive a 4 banger right you will get better mileage than you do with the 6 , but who wants to drive like there great Grandma ?

so that's really not an issue.
If you want the best engine ever made then get the 2.7 Tacoma and nothing has out lasted the old 2.4. I know of two guy's who have over 400,000 on there 2.4 Toyota's and they are still running. These guy's are oil well tenders and they try to beat there trucks to death but the engine just won't die

Mike