https://www.aopa.org/news-and-media/all-news/2018/may/09/cessna-discontinues-turbo-skyhawk-jt-a
QuoteCessna Aircraft has quietly discontinued the sale of its diesel engine-equipped Skyhawk, less than a year after the aircraft was certified in 2017.
https://www.planeandpilotmag.com/article/turbodiesel-cessna-172-jt-a/#.W2u0dtJKiUk