#PriusParade Hi All: Prius sets a Guinness World Record for the most vehicles in a hybrid parade. The official tally for the parade lap on the Alameda Air Field: 332 Prius owners in attendance. California has a long and devoted history with Prius as the golden state accounts for 40 percent of the nation's Prius vehicles. Northern California is particularly well-known for its Prius population density. Toyota and Lexus have double the hybrids on the roads than any other auto manufacturer. Wayne