After the Mustang, he took over the Lancelot program at Lincoln. The program's goal was to come up with a personal luxury car to rival the Cadillac Eldorado, which had come out in 1967. The work to date on the project was to do a disguised gussied-up T-Bird. Iacocca said that wouldn't sell as a true luxury car. Changed it all drastically, and the Lincoln Mark III (1969-71) was born, which was the first Lincoln to out-sell Cadillac. Also the first American car to have radial tires standard, rear ABS (really!), fiber optic tail lamp monitors, all sorts of stuff, including a fantastic high-compression 460 V8, with the bullet-proof big-block version of the C6 trans behind it. At the time, a good-handling and fast cruiser. The succeeding Mark IV and Mark V were sales winners, too.
The Dodge/Plymouth/Chrysler minivan was a real coup. The concept for a vehicle like that was something Iacocca had played with at Ford, but could not get Ford interested in the idea at all. So at Chrysler, he dusted off the idea, and used the K-car as the basis for it. The Chrysler minivan far outsold all the me-too competition for many years. And what the competition came up with was pretty poor for years. The Aerostar, the Astro, the Japanese short-wheelbase "delivery vehicles" with engines in strange places (Toyota, Nissan, Mitsubishi). Finally, after three generations of tries, Toyota finally came up with a worthwhile competitor, by copying the Chrysler minivan. Alas, Chrysler's quality on the minivans declined. To me, the 1996 redesign started that long slide downhill.