The fastest-selling new "car" in the Fresno-Visalia market is actually a truck — the GMC Sierra 1500. According to iSeeCars.com, the light-duty pickup averaged 26.8 days on local dealership lots from March through June. The Nos. 2-5 fastest sellers are Toyotas: the RAV 4 Hybrid (35.3 days), Highlander (52.0), Corolla...