A mysterious Lamborghini Gallardo prototype has been spotted on the Nurburgring. It could be a Superleggera Spyder or a Valentino Balboni Edition Spyder.

A mysterious Lamborghini Gallardo prototype has been spotted on the Nurburgring, and we're not quite sure what to make of it.

At first glance, the car appears to be a Superleggera Spyder considering it has the same wheels, diffuser, and rear bumper as the LP570-4 Superleggera. However, it lacks the bigger Superleggera rear wing in favor of a much smaller one.  Another element sending mixed signals is the front bumper which seems to match that of the LP550-2 Valentino Balboni Edition.

If it is the latter, the convertible would feature rear-wheel drive and a naturally aspirated 5.2-liter V10 engine with 550 PS (405 kW / 542 hp) and 540 Nm (398 lb-ft) of torque. On the other hand, if this is the LP570-4 Superleggera Spyder, we can expect all-wheel drive and a 5.2-liter V10 with 570 PS (419kW / 562 hp) and 540 Nm (398 lb-ft) of torque.

We are leaning towards the Superleggera with its Arancio Borealis paint job peeking out from under the edges of the black wrap, but whatever it is, the model will help increase Gallardo sales which have recently passed the 10,000 unit mark.