So long as there is sufficient space between the hood and the engine, which tends to be the main issue with very low cars. Sheet metal deforms as a pedestrian bounces off of the hood, increasing the interaction time and decreasing the instantaneous acceleration. This requires at least 10 cm between the bottom of the hood and the top of the engine. Less distance, and a pedestrian instead bounces off of the engine block, which doesn't deform on impact.
