I think that's debatable. Look at the serviceability issues between a RWD vehicle i.e. S90 as compared to a V70. The timing belt alone takes a leisurely 2 hours to replace on a S90 compared to about 4 on a V70. At $100 per hour, that is significant. With newer vehicles, the higher level of electronic and mechanical integration may produce a lower parts count to the manufacturer but it's proving very expensive to the consumer if that part needs to be replaced.