The month was February, and the little redesigned Fiat 500 was wearing heavy camouflage while being put through its paces on snowy roads.Fast-forward four months and our carparazzi spotted another Fiat 500 test mule resting in what looks like an underground parking. As we expected, kaleidoscopic camouflage is strategically placed on its outer body, but we get to partially see the Cinquecento's interior.First things first, so let's do some talking and guesstimate that the Fiat 500 will receive cosmetic tweaks similar to those featured on the larger 500X crossover.This means clients should expect different bumpers, headlights and fog lights, a well as the usual add-on made of new wheel designs and more color combination.On the inside, engineers made sure we don't see any of the changes implemented, as the entire dashboard plus the steering wheel and the central console are hidden by a black cover. In any case, we don't think Fiat will severely alter the 500 on the inside, so we could be talking about some buttons being repositioned and rearranged.If you pay attention to the spyshots, you'll be able to spot a second Fiat 500 - in convertible guise - but don't get your hopes up because the same psychedelic camouflage is guarding the car's fresh exterior cues.We expect the facelifted Fiat 500 to make a debut later this year in Frankfurt, but we'll keep you updated as more info emerges.