Forget the green pitch, it's the Iran war doing the selling. Fuel price shocks are pushing Uber drivers in Johannesburg onto electric cars, with Durban-based fleet manager Valternative expanding its 360-car pilot fast and eyeing seven more African countries. But the South African reality bites hard: freezing winter mornings with no heater, hours lost queuing at scarce charging stations, and a 25% import duty on foreign-built EVs versus 18% on pe…