[10 February 2017] This month (February ) the non-licensed BX 4TC XL3026 was put on sale at the auction of retromobile 2017. It is a Swiss car and price indication is between 50K-80K euro.
More information and photos can be found here: http://www.artcurial.com/en/asp/fullCatalogue.asp?salelot=3118+++++105+&refno=10589255
Remark 13 February 2017: The new owner bought the car for 63,798 €.
We hope that he will contact us and register himself among all the 4TC owners.