I notice this because I worked in automotive, for so long. The customers' computer hardware is embedded in the car and covered by the extended guarantee. 

Anytime we wanted to upgrade or change the software, we had to "make room" on the current system or buy new hardware at our own cost and exchange them in the shop. And we had a financial incentive to choose the least-powerful processor and simplest sensors possible, and then tune them and program them to maximum efficiency, because that raised the margin on each automobile, without lowering the customer experience.