We can afford them for now. If oil prices go up significantly I’ll seriously reconsider my 18MPG suv... but I’ll reconsider to an alternative that can still support my lifestyle (perhaps Tesla truck, or something like RAV4 Prime/Hybrid but larger). Not a mini car that can’t go fast.

Going fast is the fun in driving.

I like the sights, myself. The only time I go over 100kph is on the freeway, and it's not by much.

Based on the metric I’m guessing you don’t live in USA? Here we have vast expanses of designated wilderness area (well over 1M sq km), where it can be really quite fun to get up to speed while enjoying the views.

I do live in the USA. I used 100kph because that's the car under discussion.

I've never been to a drivable wilderness area, or on a freeway where I'd be comfortable going all that fast. And if I was going there just to drive hard it would probably be rare enough that I'd rent a really nice fast car.

Average price of a new car in the US is creeping up on average income, so the ‘can afford’ thing may be marginal. The industry seems to be quite effective at making people stretch their spending on this.