And turbine engines are designed to operate at a constant load, not a variable load how our vehicles are operated.
In the case of these cars, the turbines performed quite well. Fifty or so of the cars were released to the public on a random drawing basis, the cars being loaned to the drivers for a two month period. The cars had a seventh generation engine and performed very well while they were in the field.
Lehto has another video on the subject that covers it quite well.
https://www.youtube.com/watch?v=ZuGvx3WYg1kAs a side note, my father was working for Chrysler at this time as a district manager in the Pacific Northwest. He was well aware of this particular version of the turbine car program, being quite enthusiastic about it. I remember one of the loaner cars driving through our neighborhood when I was in the fifth grade. Pretty cool stuff at the time for a kid my age.