It's a YINYANG thing.
360 divided by 6 = 60
360 divided by 8 = 45
Therefore, if you're going in a straight line, or in circles, the V8 is better.
OK, the truth, if I needed a daily driver, I'd get the 6, if I wanted a go-fast weekend hotrod, or just have gobs of money to spend, I'd get the 8. 