The 2006 Jeep Wrangler is a 2-door, 4-passenger sport-utility, available in eight trims: SE, X, Sport, Rubicon, Unlimited (also with Premium Package), Unlimited Rubicon, 65th Anniversary Edition X, and a resurrected old favorite: the Golden Eagle Edition. The four-speed automatic overdrive transmission, 2.4-liter, 4-cylinder engine gets between 18 and 21 miles per gallon; the 4.0-liter, 6-cylinder engine gets between 14 and 18. The six-speed manual transmission, 2.4-liter, 4-cylinder engine gets between 18 and 21 miles per gallon; the 4.0-liter, 6-cylinder engine, gets between 15 and 19. Drivers like the power and roominess of the 2006 Jeep Wrangler, but it is noisy, and poor gas mileage is a major complaint.