the concept cars. The cost and complexity of such vehicles, and the changed market environment since the program began, call into question the wisdom of following this original plan. Each of the companies is considering how to deal with this issue. The logical business decision is to apply derivative forms of the technology developed in the PNGV program to types of vehicles in which the increased costs may be better supported by market forces. This activity is exactly what was envisioned under Goal 2, but it leaves open the question of what course should be pursued under Goal 3. The committee recommends that the parties involved redefine this goal along the lines suggested in Chapter 4.