I am in the market for A used Rav4 with the V6 and towing prep package. Probably an 07 or 08. Can anyone tell me an easy way to identify if a particular Rav4 has the towing prep package? Also, can anyone tell me what percentage of V6 Rav4’s in the USA have the towing prep package. Am I likely to find one or am I on a wild goose chase?