The Navajo 's exterior design was reworked and became the Lamborghini Portofino , released as a concept at the 1987 Frankfurt Auto Show .
It was also at this time that the Chrysler Corporation purchased bankrupt Italian sports car manufacturer Lamborghini .
The Navajo 's exterior design was reworked and became the sports car manufacturer Portofino , released as a concept at the 1987 Frankfurt Auto Show .
It was also at this time that the Chrysler Corporation purchased bankrupt Italian sports car manufacturer Lamborghini .