No one in the world _needs_ to do 0-60 in less than 5 seconds in a family car/public roads. These perfs aren't even sustainable more than a few times in a row so it 100% is a marketing thing.
More acceleration is always beneficial in cases where you have to perform a safety maneuver or evade something.
Imagine, you are going in the leftmost lane, there is a car a bit too close to you behind (but still fine), in front of you there are no cars, but you aren’t speeding up because speed limits (and you just want to go at a comfortable pace). Someone in the lane to the right isn’t paying attention and trying to merge right into you, you honk, but it will be too late to react for the offending driver. Your only escape here in a slow acceleration car is to break and cause the car behind you to rear-end you, causing a collision and tons of potential injuries. In a car with fast acceleration, you can quickly speed up and that car will (recklessly) merge, all while avoiding an accident.
And that’s not even talking about stuff like avoiding something on the road or stuff falling out of a truck bed in front of you or just absolutely any kind of an avoidance safety maneuver.
Not legal=/=not useful, unless you mean higher than what most nice cars can currently do.
Of course, this will certainly not be viable during the typical commute hours.
BTW having 0-60 in 3 seconds helps you keep a safe driving distance.
That's what people want to believe but unless you have been trained by professional chances are more acceleration = more risks 99.9% of the time. In your example you can very easily go from being victim of an accident to being at fault in an accident you caused.
> And that’s not even talking about stuff like avoiding something on the road or stuff falling out of a truck bed in front of you or just absolutely any kind of an avoidance safety maneuver.
If something is in front of you acceleration is not really a concern. You either need good brakes or very agile car coupled with extremely good reaction time.
It's as simple as asking yourself if roads would be a safer place if everyone had a Nissan gtr.