Hahaha.....I saw that one today too. Was going to post it but figured it'd bring out the torches and pitchforks
An inch or two would be fine. Anymore & it throws off the proportions. But, it does make it look longer.
Yeah, I can't say I like the modified look; the proportions of the original are such that they shouldn't be messed with. It's very rare that a designer gets it absolutely right, and the 1st gen Riv is about as perfect as it gets for the style of car that it is. One should never mess with perfection; the end result is invariably flawed.