Nicolina Hubert (right) and co-pilot Anna Sorensson are set to run their vintage Saab 96 — bearing the Steinbeckian sobriquet of "The Pearl" — in La Carrera Panamericana. The 96 was famously campaigned in rallies by Erik Carlsson back in the early 1960s and enjoyed a 20-year production run, with the last one trundling…