The Lamborghini Huracan Performante is barely two years old, but it appears the company is already working on an upgraded model.

That remains unconfirmed, but spy photographers have caught a mysterious prototype undergoing testing in Europe. The model appears to be based on the Huracan Evo and doesn’t look all that special until you see it from behind.

While the rear end carries over, the car has been equipped with a unique engine cover that features a stepped design. It’s unlike anything else used on the Huracan lineup and it has more in common with the cover featured on the Aventador S.

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Besides the unique engine cover, the prototype has a mismatched front bumper with tape on the outside edges. That being said, there doesn’t appear to be anything terribly special about it.

Given the minor modifications, we’re not entirely sure what this prototype is for. However, speculation suggests it could be a mule for the updated Huracan Performante.

That seems reasonable as the Huracan was given a facelift earlier this year and renamed the Huracan Evo. Besides featuring updated exterior styling, the model has a more modern interior with an 8.4-inch infotainment system.

Of course, the biggest change was the installation of an upgraded 5.2-liter V10 engine that produces 631 hp (470 kW / 640 PS) and 443 lb-ft (600 Nm) of torque. Those are same numbers generated by the Huracan Performante and this has effectively made the model somewhat redundant.

As a result, we wouldn’t be surprised if Lamborghini is working on an upgraded Huracan Performante which features a more powerful engine and some updates from the Huracan Evo. There’s no word on how powerful the new Performante could be, but the car originally had 30 hp (22 kW / 30 PS) more than the standard Huracan.

If Lamborghini sticks with that formula, the Huracan Performante Evo could have 661 hp (493 kW / 670 PS). This would enable the car to be faster than the current model which can accelerate from 0-62 mph (0-100 km/h) in 2.9 seconds and hit a top speed in excess of 201 mph (325 km/h).

Picture credits: CarPix for Carscoops