 Its replacement, the conceptually consistent Jeep Wrangler series, remains in production since 1986.With its solid axles and open top, the Wrangler has been called the Jeep model that is as central to the brand's identity as the rear-engined 911 is to Porsche.At least two Jeep models (the CJ-5 and the SJ Wagoneer) enjoyed extraordinary three-decade production runs of a single body generation.