Because existing sources of auto reliability information left much to be desired, in late 2005 I started conducting my own reliability research at TrueDelta.com. TrueDelta reports absolute stats like "trips to the shop" that make the differences between cars much clearer. Results are updated four times a year, so any significant changes in a model's reliability become apparent quickly.
Thanks to the help of many forums, there are nearly 23,000 vehicles signed up so far, including 226 Corollas. But more are needed. So I'm grateful to Dave Z. for giving me permission to post here.
Participants simply report repairs the month after they occur on a one-page survey. When there are no repairs, they simply report an approximate odometer reading four times a year, at the end of each quarter.
To encourage participation, panel members will receive full access to the results for free.
For the details, and to sign up to help out: