Lahart reminds readers that the Model 3 from Tesla at $35,000, half the price of $70,000 for a basic Model S in 2014, will not be out till 2017. Models for share price targets of over $200 for Tesla assume the car company will sell these models in large numbers, a Barclays model assuming 350,000 of these cars sold by 2020. It is hard to predict the future for gas prices. In the current environment sales of electric vehicles and popular hybrids such as the Toyota Prius are declining. Tesla faces real challenges considering that gas prices though unpredictable face continuing increases in the development of lower cost shale supplies with new technologies in the future.