Yesterday we broke the news with the first spy photos of the upcoming BMW Z5 Roadster. We introduced the new roadster through a series of night shots, but today, we have more images showing the upcoming roadster being tested in daylight.

The spy shots show the same heavily camouflaged prototype with the typical proportions and short overhangs of a BMW roadster. Based on these preliminary images, the size of the alleged Z5 Roadster is larger than the current BMW Z4, but the increased dimensions are likely to be offset by the soft roof and lightweight materials used to build the chassis.

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Past rumors mentioned the Z5 birth as a result of a collaboration between BMW and Toyota, who are allegedly working together on three different models. BMW and Toyota have been tight-lipped about details but the two companies say their partnership will last until at least 2020.

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The sources say the BMW Z5 will look terrific, following the classic roadster proportions, a huge hood, very elongated headlamps attached to the front kidneys to form the new visual identity of the Z models.

Same source mentioned the Z5 as a rival to the Porsche 911 and the newcomer Mercedes AMG GT. The future Z5 is said to be offered as a coupe as well – this latest version will be a true 2 + 2 sports car.

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The range will consist of gasoline engines, with options for four-cylinders and six cylinders, with a power range from 270 hp to past 400 hp. A hybrid version will sit at the top of the line-up and could reach 500 hp.