Hannah Elliott for Forbes reports at msnbc that Forbes used data from Cars.com and Kelley Blue Book and Consumer Reports' Best and Worst Used Cars report — reliability ratings culled from 1999 to 2008 — to isolate which cars the agency rated as the most- and least-reliable models sold. The best sport compact - Subaru Impreza WRX. The worst - Pontiac G6 (V6).
