On the up side it would stop traffic congestion
Honestly, IF they made the laws as strict as that, I'd simply modify my driving in order to keep my car from becoming a Nissan Cube. To get enjoyment out of my car I'd take ever opportunity to go to the track or skid pan to go excessively fast and/or rip skids. Come to think of it... that's what I do now...
Fortunately here in reality, the likelihood of laws that strict being introduced is very low. The public outcry would be enough to topple the law over should the governing body concerned conjure up the balls to introduce it.
My driving record is as tainted as anyone else's, but the difference is that if and when I get caught breaking the law, I accept that I was breaking the law, pay the fine / do the time, learn from my mistake and try not to do it again. At the end of the day it isn't the law enforcer's fault that I broke the law... it was mine.