The original picture appears to be linked from this site:
8w.forix.com/borgudd.html
"In 1987 Slim was entered in the 24 Hour race at Le Mans in a
novel twin-turbo Volvo inline-4 powered Tiga TC286. This was developed by Volvo specialist tuner Milan Knezevic at Milspeed in Gothenburg, but the project was lacking funds and therefore the necessary development needed at this level. The car was off the pace and the engine finally expired. The entry was listed as a DNQ. "