JDPower does give the ratings for individual models, but in less detail than the brand as a whole. They give them in terms of circles, going from 1 to 5 with half-circles a possibility, but from what I've seen, they never rated a car lower than 2 on anything. On dependability, they rate Powertrain Dependability, Body and Interior Dependability and
Feature and Accessory Dependability, plus Overall Dependability.
According to them, my Saturn ION 2007's powertrain is more dependable than an Honda Civic 2007's. Interesting.