I saw the thread title and thought I was being called out.
The story about how the Viper came to be is quite fascinating. Bob Lutz detailed it in his book "Guts"
From the 92 Viper, Chrysler was able to gain financing, build the Dodge brand, and gain much-needed design and engineering credibility. The cost of development was practically nothing (like 80 million?) compared to what the company got back in public appeal, notoriety, and credibility among enthusiasts. It also taught management how to streamline development, a major factor in Chrysler's profitability through the end of the 90s.
It fully established Dodge, Chrysler, and Jeep as hot brands for the decade.
What Nissan recently did with the Juke-R reminds me of that, except the Viper had the explicit support of certain members of upper management, particularly Lutz, who grabbed a group of engineers and took them to a secret location for a few months to build a prototype.
HEY NISSAN, SUPPORT YOUR ENGINEERS.