Cold Spray is an emerging process used to produce coatings by means of a supersonic gas jet where solid fine powder particles are accelerated above a critical velocity at which the particles impact, plastically deform and adhere to the surface of the substrate. As opposed to other conventional spraying processes, Cold Spray does not involve any significant heating of the driven particles. Consequently, the resulting coating microstructure and chemical composition have been shown to match that of the original powder.  In this study, metastable alloy powders are selected for their mechanical properties at high operating temperatures and produced by rapid solidification in order to produce coatings for the automotive industry, in particular on piston heads. The present study examines the performance of such metastable coatings produced by the Cold Spray process. The mechanical properties and microstructure of the coatings are evaluated using scanning electron microscopy, porosity measurements as well as adhesion testing.