Nissan leaps to 26.7% share of the Omani market in 2020. New car sales in Oman only edge down -2.8% year-on-year over the First Quarter of 2020 to 23.874 registrations. Brand leader Toyota (-12.7%) falls much faster but remains out-of-touch at 46.6% share vs. 51.8% a year ago. In contrast,…