I certainly won't condone any deliberate or intentional MPG-fudging, although so many different factors come into play that it can sometimes be difficult to actually separate fact from fiction in that department. And my personal experience, over many years, with many different vehicles, is that it's usually easier to match (or exceed) the EPA Highway figures on the open road than it is to get the EPA City figures in stop-and-go driving, which really eats up the fuel, especially in cold weather. And, with the Hyundai/Ford mileage claims, it is unlikely that anyone would have been hurt or killed by them (unless they simply ran out of gas on a busy road and got rear-ended)....but fuel-gauges, charge-meters, an warning lights are supposed to prevent that problem.
Although it didn't get much press until relatively recently, GM, from my memory, has made rather small flimsy ignition keys and switches going all the way back to the 1960s, when I first learned to drive. To their credit, though, GM invented the side-column-mounted key/switch design back in 1969 that locked the steering/transmission.....and the Feds were so impressed with it that they made it a requirement for the next year (1970) when Ford/Chrysler/AMC followed suit. The switches on several of today's Buicks are Opel-designed, and, of course, not affected by the problems in many of the other GM-sourced switches.
I'll agree to some extent, but, at the same time, with cancer and other lung-diseases from emissions, at least there is time to medically detect them and, if possible, treat them. I personally think the Ford Pinto fuel-tank problem was far worse, for three reasons......First, because, despite warnings from engineers, it was deliberately done that way to save weight and cost on the frame-crossmembers. Second, Ford knew some would die or be injured, but figured the liability-costs would be less than production costs for the extra crossmember. Third, when a Pinto went up like a Roman candle on a rear-impact, there was obviously no time to deal with it or prevent it medically...many people were either burned/injured seriously or became toast. I'm usually not one for big judgements against auto companies for frivolous reasons....but there was nothing frivolous about that Ford case. They deserved every penny of the fines and judgements levied against them. Part of it was the personality and dictatorial management style of King Henry (Henry Ford II)...but that's a subject for another thread, not this one.