Mid-2000s era car technology seems to have been the sweet spot across most brands for technology improvements while still having practical serviceability and maintainability.
I'd agree with that timeline with regard to US domestic truck platforms, which famously lagged cars in complexity by about a decade. A lot of 2000's cars definitely do not qualify.
The notion of a "sweet spot" is valid. All the classic safety and reliability problems were solved, yet the vehicles (again, truck platforms) are tractable in terms of service.
