New FIAT 500 unveiled with new exterior and interior style, Available in two body styles (hatchback and convertible), the New FIAT 500 will be available in three trim levels: Pop, Pop Star and Lounge. The engine line-up of the New FIAT 500 at launch includes a 0.9-litre TwinAir engine (85hp or 105hp) and a 1.2-litre 69hp unit.