Mine is definitely the trend of doing “catless downpipes” and “resonator deletes” making your exhaust super raspy as a means of gaining more volume rather than doing a proper exhaust setup. Especially since high flow cats these days will flow more hp than most are making.
If I include stuff thats possible on American roads I‘d have to include coal rolling and those pedestrian killing rims that extend half a meter past the width of the car, not to mention those people putting huge amounts of negative camber on their car to get that „stepped on a hotwheel look“.
Here in Germany that stuff wouldn’t be possible you’d probably be pulled over and get your car towed within the first 5km.
Around here I could mention those cheaply lowered cars with the ebay special suspension parts that strangely ride like dog shit on public roads but you know what really grinds my gears?
Its not even a Car mod it’s usually limited to motorcycles. I‘m speaking about those idiots putting a slip-on on their bike and removing the DB-killer. I like motorcycles just as much as I like cars and I couldn’t care less about people wanting to change their exhaust sound (not volume) with a slip-on, I only get aggressive when they also have to make their bikes unnecessarily loud. Its mainly because the local governments react to loud bikers by closing twisty roads on Sundays.
So because of the damn idiots I am not allowed to ride on some of the best roads in my area.