Leaked photos of the next-generation Jeep Wrangler Unlimited Rubicon have surfaced on the internet.

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As expected these grainy black and images show that the new Wrangler Unlimited doesn't differ too much stylistically from today's car.

These pictures were posted by a reader on JL Wrangler Forums. Later the administrators of the site claimed that they had confirmed the authenticity of these photos from sources within Fiat Chrysler.

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According to those sources and these images, the new Wrangler Unlimited will feature fully removable roof and doors, a solid frame with a fixed roll cage, more boot space, full length rain gutters, and a tall seven-slat grille.

In mid-2015, Sergio Marchionne, Fiat Chrysler's boss, confirmed that to lower costs, the new Wrangler wouldn't feature the much-rumoured all-aluminium body. Instead key components, including the doors, bonnet and tailgate, would be fashioned out of the lightweight material.

Marchionne has also said the next-generation vehicle will be available with smaller turbocharged engines for improved fuel economy.

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Above: Rendering of the new JL Wrangler Unlimited by JL Wrangler Forums.

The new Wrangler is expected to debut this year, with the current vehicle likely to continue in production as a value-oriented entry-level model.

In addition to the two-door Wrangler and four-door Wrangler Unlimited, a ute variant is also anticipated.