[43Supporter]

The problem here is: In game, a car is "functional out of the box" -- that is, all weapons, accessories, and primary components work perfectly, without the period of "fettling" required for stuff like "getting the sights tuned properly", or "fixing that recurring leak on the left-rear wheel", or similar. If the game had rules for a failed Eng. roll resulting in, say, a hit to HC (there's some flaw in the suspension design -- x-ref "Chevrolet Corvair"), or a to-hit penalty to a weapon, that might make Eng. skill relevant.