Another few reasons for keeping it the same - the main appeal of the series is the four hour races and that is what I signed up for, 4 hours, not 500 miles. For my team, at least, it makes it very easy to sort out drivers, each does an hour stint but with 500 miles, well, we can work round it but meh, I'd prefer the four hours. Also, I hate to say it but doing 500 miles makes it very "NASCAR-ish" but the idea of endurance racing and the series is generally a European style (if you get my meaning :shrug
And yeah, those wimps who voted but didn't post, show your face
EDIT: It's Leifde not Leidfe
(My name is Danny btw, please call me that, I kinda don't like my username)