car_4.prc	for OS 3.0, greyscale PDAs
car_16.prc	for OS 3.3, greyscale PDAs
car_256.prc	for OS3.5 or higher, color PDAs (Palm IIIc). Works slowly on high-color PDAs.
car_64K.prc	for OS3.5 or higher, high-color PDAs (Visor Prism, m505)

