Clay model reveals new four-door variant as well as the new design for next-generation Smart ForTwo model.

The 2012 Smart ForTwo+2 has been spied. Yes, it's a 1:4 scale clay model but we can still make out something of how the car will look nonetheless.

Smart is developing a bigger variant of the ForTwo model for the next generation expected to debut later this year and this clay model reveals a little about where the design is headed on the next Smart range. The front fascia has been completely redesigned with newly shaped and narrower headlights and a thicker-lipped, open-mouth grille.

The ForTwo+2 model pictured here comes in a four-door body style with two additional seats and rear-hinged doors for better access to the back of the cabin. Though, we can't be sure the production model will stay with that rear-hinged design.

Clearly, the ForTwo+2 is a larger, wheelbase-extended variant of the ForTwo model but the next ForTwo will also grow in size compared to the current generation in both width and length. But it will remain a rear-engined, rear-wheel drive vehicle.

With Daimler partnering with Renault-Nissan to share small car power trains, the next Smart may also benefit from a new gearbox and perhaps source its engines from the Franco-Japanese carmaker.

The 2012 next-generation Smart ForTwo is scheduled for a debut at the Frankfurt motor show in September.

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