A car shouldn't just have a life span of 6-10 years.
They don't.
My current daily driver is 18 years old. I expect at least another 10 barring an accident, maybe 30 more years as a spare vehicle. It got a new transmission at 200,000 miles. Engine seems like it'll make it to at least 400k. A replacement is $1500, far less than a new car.
Most cars in my family (approximately 30 cars) are between ten and thirty years old.
I've had 3 cars since 1996, all bought used, and I traveled for work with one. One car I sold to a family member, and it's still being driven.
It's people that choose to not drive cars this long.