At the moment one of my rages (that hasn't already been mentioned) are the rotten swine that scoot past the traffic queue in a turning lane, then merge back into the traffic down the road.
Mostly happens in Wellington heading towards the terrace tunnel, they'll take the Willis st lane and cut across at the lights. Dangerous, annoying and only holds up the traffic more. For some reason it usually happens in moderate traffic, so there's still good flow. They maybe only save 20 secs at best, beats me why they do it. Sheer arrogance in my opinion.
Yesterday a white Lexus did it and I'll be damned if I didn't consider putting 1.6 tonnes of German bumper against the side of their car. That's one thing I like about the e32, bumpers that bump. Those meaty plastic shields have had a few scrapes by dullards with no concept of spatial awareness over the years. Mostly car parks or someone attempting to cut across a few lanes in traffic. Grab $2-50 cash off the offending driver, light sand, plastic paint and she's as good as new
Modern bumpers are sleek but if you use them they crumple and scratch.